ADEN - Saudi-led coalition air strikes hit an Al-Qaeda training camp in the network's southeastern Yemen stronghold on Tuesday, killing and wounding dozens, government officials in the region said.

"An Arab coalition air force targeted an Al-Qaeda training camp, killing and wounding dozens" in Hajr, west of Hadramawt's provincial capital Mukalla which has been held by the militants since April.

Tribal sources in the area told AFP that a series of air strikes hit the camp and that wounded militants were taken to a hospital in Mukalla. Witnesses there reported seeing around nine vehicles carrying casualties from the area. Dozens of Al-Qaeda militants were meanwhile seen rushing to the hospital to donate blood, according to residents. The coalition, which launched an air campaign against Iran-backed rebels in Yemen a year ago, began targeting militants for the first time last week in Yemen's second city Aden.

Al-Qaeda and the Islamic State group have taken advantage of the conflict between the rebels and coalition-backed loyalist forces to reinforce their presence in the south and east of the country.

The Yemen-based Al-Qaeda in the Arabian Peninsula, or AQAP, is classified by the United States as the network's deadliest franchise and had claimed attacks on the West in the past.

Meanwhile, Iran-backed rebels have shot dead a cameraman who was covering clashes in Yemen's third-biggest city, the war-torn country's union of journalists said on Tuesday. Mohammed al-Yemeni, a freelancer for several media outlets in Yemen, was killed by rebel sniper fire on Monday in Taez, the union said in a statement carried by the official website.

Three other cameramen were wounded in the gunfire, the statement added, identifying them as Naef Wafi, Haikal al-Uraiki and Abdulqawi al-Azzani.

The union urged all warring parties in the country to "stop their systematic targeting of journalists."

Last month, a rebel sniper shot dead Ahmed al-Shaibani, a cameraman working for the government-run Yemen TV channel, while he was covering clashes in Taez. His killing drew condemnation from international media watchdogs.

Yemen has been hit by unrest since the Huthi rebels and allied loyalists of former president Ali Abdullah Saleh overran the capital Sanaa in September 2014 and forced the government to flee south.

The violence significantly increased after a Saudi-led coalition launched a military campaign against the rebels one year ago. Taez, which was besieged by the rebels for months, has been the scene of deadly battles with some 200,000 civilians caught up in the fighting.