Officials say at least 34 people have been killed and 125 wounded after a suicide bomb attack in the Turkish capital of Ankara.

A car bomb was detonated close to busy bus stops near Ankara's main square in the Kizilay neighbourhood.

Health Minister Mehmet Muezzinoglu said around 19 people had been seriously hurt in the incident, which comes just a few weeks after a bomb attack on a military convoy in the city killed 28 people.

Two of the dead are believed to be the attackers.

A destroyed bus is seen in the street after an explosion in Ankara. The exploison happened near a crowded bus station and many people were reported to have suffered injuries according to local media (EPA)

Eyewitness Dogan Asik was injured in the attack:"There were about 40 people."

"It [the bus] slowed down. A car went by us, and 'boom' it exploded," he said.

In pictures: Ankara bombing Show all 30 1 /30 In pictures: Ankara bombing In pictures: Ankara bombing Family members and relatives grieve for victims of a car bombing outside the forensic morgue in Ankara In pictures: Ankara bombing Men hold Turkish flags over the coffin of a car bombing victim during a commemoration ceremony in a mosque in Ankara In pictures: Ankara bombing Relatives of Feyza Acisu one of the victims who was killed in an explosion cries during the funeral in Ankara In pictures: Ankara bombing In pictures: Ankara bombing Relatives of Murat Gul one of the victims who was killed in an explosion pray near the coffin covered with Turkish flags during the funeral in Ankara In pictures: Ankara bombing Forensic experts investigate the scene of an explosion the day after a suicide car bomb ripped through a busy square in central Ankara killing at least 34 people and wounding 125, officials said, the latest in a spate of deadly attacks to hit Turkey In pictures: Ankara bombing Forensic experts investigate the scene of an explosion, the day after a suicide car bomb ripped through a busy square in central Ankara In pictures: Ankara bombing Turkish police secure the area as scenes of crime officers search the area after an explosion in Ankara In pictures: Ankara bombing Relatives of victims who were killed in an explosion mourn in front of forensic medicine institution in Ankara In pictures: Ankara bombing People carry an injured person on a stretcher at the scene of a blast in Ankara In pictures: Ankara bombing Relatives of people wounded in an explosion in Ankara, Turkey, react as they arrive at a hospital to see their loved ones In pictures: Ankara bombing Emergency workers are seen on a bus at the explosion site in Ankara In pictures: Ankara bombing Forensic experts investigate the scene of an explosion in Ankara In pictures: Ankara bombing A burning car after a blast in Ankara In pictures: Ankara bombing Emergency services attend the scene in central Ankara's Kizilay Square In pictures: Ankara bombing In pictures: Ankara bombing Dogan Asik, 28, who was blown away from inside a bus by a powerful explosion speaks at the explosion site in the busy center of Ankara In pictures: Ankara bombing Emergency services help an injured person following after an explosion in Ankara's central Kizilay district in Ankara In pictures: Ankara bombing The wreckage of a bus and a car are pictured at the scene of a blast in Ankara In pictures: Ankara bombing Forensic services and firemen work around burnt out taxi vehicles after a blast in Ankara In pictures: Ankara bombing In pictures: Ankara bombing In pictures: Ankara bombing In pictures: Ankara bombing At least 27 people were killed and 75 wounded in an explosion in the Turkish capital Ankara in what appeared to have been a car bomb attack according to Ankara governor Mehmet Kiliclar Getty In pictures: Ankara bombing Medics carry an injured person at the explosion site in the busy center of Turkish capital, Ankara AP In pictures: Ankara bombing The bomb exploded close to bus stops near a park at Ankara's main square, Kizilay. The news channel said the explosion occurred as a car slammed into a bus, suggesting that the blast may have been caused by a car bomb AP In pictures: Ankara bombing Emergency workers work at the explosion site in Ankara Reuters In pictures: Ankara bombing Emergency workers work at the explosion site in Ankara, Turkey Reuters In pictures: Ankara bombing A destroyed bus is seen in the street after an explosion in Ankara EPA In pictures: Ankara bombing Emergency workers work at the explosion site in Ankara, Turkey Reuters

Witnesses said the explosion happened near the main bus station, close to government ministries and parliamentary buildings, and several nearby vehicles were left burning in the aftermath.

Police have closed off the area around the Güvenpark in the Kizilay neighbourhood.

Turkish president Recep Tayyip Erdoğan has said:

"Turkey will certainly unite and overcome these hard times," Anadolu Agency reported.

"Terror attacks do not diminish our will to fight against terror, but further boost it."

Government sources have blamed the bombing on the Kurdish Worker's Party (PKK).

"According to initial findings, it seems that this attack has been carried out either by the PKK or an affiliated organization," the official told Reuters.

The PKK is banned in Turkey.

However, the country's pro-Kurdish party, the Peoples' Democratic Party, condemned the attack the attack and said it shares "the huge pain felt along with our citizens."

The statement was significant because the party is frequently accused of being the armed wing of the PKK — an accusation it denies — and of not speaking out against PKK violence.

Several analysts have also reported that Turkish media coverage of the event has been restricted.

It is the third explosion in the Turkish capital since October 2015.

British Prime Minister David Cameron tweeted he was "appalled" by the attack and that his thoughts were with those effected.

On 11 March, the US Embassy in Turkey warned of a potential terrorist plot to attack Turkish government buildings and housing located in the Bahcelievler area of Ankara.

Last month, a Kurdish militant group claimed an attack on a military convoy in Ankara which killed 28 people.