ANKARA - Suspected Kurdish rebels have carried out a wave of deadly bombings in Turkish cities in what appears to be an intensified campaign against state security forces in the chaotic aftermath of the failed coup.

Turkish leaders on Thursday accused the outlawed Kurdistan Workers’ Party (PKK) of waging three attacks in less than 24 hours that for the first time struck areas in the east that are not predominantly Kurdish.

At least 14 people have been killed in total and around 300 wounded, according to various officials. One of the bombings struck near a hall in the far eastern city of Van where a wedding party was in full swing, sending the bride and groom and their guests fleeing in panic. “Our fight against terror will never cease,” President Recep Tayyip Erdogan said.

The bloodshed comes after a top commander with the PKK - which is labelled a terrorist group by Ankara and its Western allies - last week threatened further attacks in Turkish cities. Early Thursday, a car bomb blew up at police headquarters in the eastern city of Elazig, killing five people including three police and injuring more than 200 people.

The force of the blast left the building largely in ruins and turned nearby vehicles into blackened, mangled wrecks. The city, a conservative nationalist bastion, had been spared much of the violence that has rocked the Kurdish-dominated southeast since a two-and-a-half year ceasefire collapsed in 2015.

Just a few hours later, five soldiers and a village guard were killed when a homemade bomb exploded in the path of a military convoy in the southeastern town of Bitlis. And on Wednesday night, two policemen and a civilian were killed and dozens wounded in another car bombing in Van, which has a mixed ethnic Kurd and Turkish population. Dramatic video footage showed the moment the bomb exploded as a wedding party was taking place in a nearby hall, causing debris to fly everywhere and people to flee, screaming.

The rebels appear to have intensified their attacks since the failed July 15 attempt to overthrow Erdogan, seen by critics as an increasingly authoritarian and polarising figure. One senior politician suggested the PKK was collaborating with supporters of US-based preacher Fethullah Gulen, an erstwhile Erdogan ally now accused by Ankara of orchestrating the coup bid.

“Once again, the attacks in Van and Elazig show how PKK and FETO work together,” former prime minister Ahmet Davutoglu wrote on Twitter, using the name Ankara gives to the movement led by Gulen.

Erdogan, who has come under fire over the massive post-coup crackdown and human rights in Turkey, said his country was facing a battle against both the PKK and the Gulen movement. “The West doesn’t understand our struggle, they didn’t understand, they don’t understand and they won’t understand,” he said in a speech.

Monday was the 32nd anniversary of what is considered to be the launch of the PKK’s armed rebellion against the Turkish state.

Speaking on condition of anonymity, a source close to the Turkish government told AFP that the PKK was taking “advantage of the current atmosphere in Turkey”.

“Any terrorist organisation likes to exploit crises,” the source said, referring to the aftermath of the failed putsch which has seen a massive purge of the army, including the dismissal of almost half Turkey’s generals and admirals.

Anthony Skinner, head of political risk at Verisk Maplecroft consultancy in Britain, said the Elazig attack was not “that much of a surprise” after the PKK warning. “The PKK wants to show it’s very much alive and kicking, and various people do anticipate it will launch more attacks towards central and western Turkey.”

Davutoglu’s suggestions of collaboration between the PKK and so-called Gulenists stand in contrast to the history of tense relations between them.

One of the reasons for the acrimonious split between Erdogan and Gulen is said to be the Turkish leader’s now failed peace push with the Kurds. Kurdish activists have also long accused Gulen supporters in the police and judiciary of targeting them.

More than 600 members of the security forces have been killed in PKK attacks since the ceasefire collapsed, according to a toll given by Anadolu on July 31.

Erdogan said Thursday that 182 PKK militants had been killed with more than 3,000 suspects detained since the coup bid.

Since the ceasefire ended, the military has waged fierce offensives against the guerrillas in southeastern Turkey, including punishing curfews on urban areas.

Anadolu said the operations have killed more than 7,000 militants in Turkey and northern Iraq but the toll cannot be independently verified.