Turkey’s President Tayyip Erdogan has condemned a “heinous terrorist attack” that left five people dead and 14 injured at the country’s largest aerospace manufacturer.

The attackers stormed the Turkish Aerospace Industries headquarters in Ankara, with witnesses reporting a large explosion outside followed by gunfire.

CCTV footage shows a man and woman armed with assault rifles and wearing backpacks roaming the building and opening fire.

Broadcasters showed images of a damaged gate and footage of an exchange of gunfire in a parking lot.

Interior Minister Ali Yerlikaya said two attackers – a man and woman – were “neutralised” in the horror attack that triggered panic in the country.

No one claimed responsibility but the government confirmed the suspects were likely from the PKK – a designated terror group of Marxism-Leninism and separatist ideology.

The Turkish government blames the group for 40,000 deaths since it was formed in 1984.

The main targets have been the tourism industry, economic infrastructure, educational institutions, teachers, hospitals, public and private enterprises.

Turkish authorities enforced a temporary media blackout on coverage of the attack and scrambled to control social media access.

One of the attackers captured on CCTV. Photo: X

Erdogan was in Russia at the time, alongside Russia President Vladimir Putin at a BRICS conference in the city of Kazan.

Some media reports claimed there was a suicide attack and that there were hostages inside the building, though officials have not confirmed this.

Witnesses told Reuters that employees inside the building were taken by authorities to shelters and no one was permitted to leave for some hours.

They said the blasts they heard may have been at different exits as employees left work for the day.

Ambulances and helicopters later arrived.

TUSAS is Turkey’s largest aerospace manufacturer, producing training craft, combat and civilian helicopters, as well as developing the country’s first indigenous fighter jet, KAAN.

Owned by the Turkish Armed Forces Foundation and government, it employs more than 10,000 people.

NATO Secretary General Mark Rutte condemned the attack and said the military alliance would stand with its ally Turkey. The European Union delegation in Turkey also condemned the attack.

-with AAP