RAMALLAH - The Israeli army raided a Palestinian refugee camp in the occupied West Bank Monday, AFP journalists said, in an apparent hunt for suspects in the killing of a soldier.

Dozens of Israeli troops entered the Amari Refugee Camp in Ramallah in the early hours of Monday, closing off all the entrances, AFP journalists said.

At least 13 Palestinians were lightly or moderately injured during the raid as clashes broke out, the Palestinian Health Ministry said, with soldiers firing tear gas and bullets. Residents said a number of Palestinians were arrested, though there was no immediate confirmation or statement from the army.

Israeli forces later withdrew from the camp. It came days after an Israeli soldier was killed during a raid inside the camp. Sergeant Ronen Lubarsky, 20, of the Duvdevan special forces unit, was struck on the head by a stone block thrown during an arrest raid Thursday and died early Saturday.

Israeli media said the block was a granite slab dropped from a third-floor window. Those responsible were not arrested at the time. Amari is located inside Ramallah, seat of the Palestinian Authority, in an area theoretically under the full control of the Palestinian government.

Israeli forces regularly carry out night raids in Palestinian-governed parts of the West Bank to arrest suspects they accuse of militant activities against Israel.

Amari, home to around 6,000 Palestinians according to the United Nations, is a regular flashpoint where Israeli raids have sparked fierce clashes in the past.

 A Palestinian was killed by Israeli tank fire into northern Gaza on Monday, the health ministry in the Hamas-run enclave said. It named the dead man as Mohammed al-Rudeia, 30, and said another man was wounded.

An army spokeswoman told AFP that two Palestinian men tried to breach the border fence "with the intention of carrying out an attack".

It said the pair were captured but other Palestinians on the Gaza side fired at Israeli soldiers, without causing injuries. "In response we attacked with a tank a nearby lookout post," she said.

Eyewitnesses said the tank strike targeted an observation point belonging to an armed group.

A statement by Hamas's military wing, the Ezzedine al-Qassam Brigades, hailed Rudeia as a "fighter", an accolade usually only given to its own members.

Separately Monday the health ministry announced the death of a Palestinian injured in clashes with Israeli forces. Nasser al-Areenee, 28, was shot a "number of days ago" east of Jabalia in the northern Gaza Strip, the ministry said, without giving further details.

At least 121 Palestinians have been killed during weeks of unrest since March 30, when Palestinians began calling to be allowed to return to their historic homelands inside Israel.

Palestinian president Mahmud Abbas left hospital on Monday after eight days of treatment for pneumonia that led to intense speculation over the 83-year-old's condition and who will eventually replace him.

Dressed in a suit as usual and walking without assistance, Abbas gave a short statement on being discharged, saying he planned to be back at work in his office as normal on Tuesday.

"Thanks to God, I left the hospital today in good health and return to work starting tomorrow," he said, speaking vigorously and with his two sons by his side.

He thanked all international leaders who had called about his health and wished him well.

The hospital stint came at a time of heightened US pressure on Abbas and the Palestinian Authority.

Some analysts said Abbas would now seek to refocus on work and downplay talk of stepping down. He is expected to preside over a meeting of the central council of his Fatah party on Tuesday.

Known to be a heavy smoker, Abbas was admitted on May 20 to the Istishari Arab Hospital near Ramallah in the occupied West Bank with complications following an ear operation, including high fever.

Officials have since said he was being treated for pneumonia.

His extended hospitalisation led to widespread speculation over whether his condition was worse than the details being disclosed.

No successor is publicly in line for the Palestinian presidency, which has added to concerns over Abbas's health.

Abbas won a four-year term as president in 2005, but he has since remained in office without further elections.

He argues the split between his Fatah party and Islamist movement Hamas, which controls the Gaza Strip, has made elections politically impossible.

- Pretend it 'didn't happen' -

A moderate, Abbas has been involved in decades of negotiations with Israel but is unpopular among Palestinians, with the majority wanting him to step down.

Many Palestinians see his approach to negotiations as having failed to end the Israeli occupation and are no where near the goal of securing statehood.

Israeli officials, while criticising what they see as his intransigence, greatly value the security coordination which his administration has provided.

Abbas succeeded Yasser Arafat, the charismatic keffiyeh-wearing leader who was revered by Palestinians.

Though Abbas has been valued by the international community due to his belief in negotiations and stated opposition to violence, he has struggled to meet Palestinians' expectations left behind by Arafat.

In recent months, Abbas has faced what the Palestinians see as the blatant bias of US President Donald Trump's administration.

Abbas froze all ties with the White House over Trump's decision to recognise Jerusalem as Israel's capital

The United States has also frozen tens of millions of dollars in aid to the United Nations agency for Palestinian refugees and has threatened to close the office of the Palestine Liberation Organisation in Washington.

Abbas has sharpened his rhetoric against US officials.

In a recent speech, he called US ambassador to Israel David Friedman, who has been a supporter of Israeli settlements in the West Bank, a "son of a dog".

Abbas made reference to Trump's Jerusalem declaration when leaving the hospital, suggesting it had weighed heavily on him.

"If the issue of Jerusalem brought us to the hospital, we wanted to get out of the hospital to make Jerusalem the capital of Palestine," he said.

Israel sees the entire disputed city as its capital, while the Palestinians want the annexed eastern sector as the capital of their future state.

Nour Odeh, a political analyst based in Ramallah, said the president would seek to use the Fatah central council meeting to refocus on the opposition to Israeli and US policy.

"I don't doubt that the recent events will have an impact - the president is not young," she said, adding he seemed to have been suffering from fatigue in the weeks before his hospitalisation.

Diana Buttu, a former Abbas aide who became a fierce critic, said Abbas would seek to quash all talk of succession.

"He is going to pretend this whole thing didn't happen. It will be business as usual, as though an 83-year-old didn't have serious pneumonia," she told AFP.

"Other politicians know that if they talk about succession they will be out."