A terror attack has left a number of people dead and injured at the headquarters of a defence company in Turkey, according to officials.
The attack was carried out against the Turkish Aerospace Industries (TAI), interior minister Ali Yerlikaya said in a statement.
Pictures from the scene show a large plume of smoke rising and substantial damage done to structures outside the building.
Firefighters and medical teams were dispatched to the area after explosions and gunshots were reportedly heard at the facility near the capital Ankara.
Unconfirmed reports in local media have suggested that a suicide bomber targeted the entrance gate before several attackers clashed with security services.
Staff at the manufacturing company were evacuated and told to seek shelter.
Video from the scene showed a plume of smoke rising after explosions were reportedly heard
Mansur Yavas, the mayor of Ankara, said in a statement: ‘I am deeply saddened by the conflict and terrorist attack that occurred at the TAI facility in Ankara.
‘I wish God’s mercy upon our martyrs and a speedy recovery to our wounded. We condemn terrorism.’
According to Turkish media, TAI has recently developed attack helicopters, unmanned aerial vehicles (UAVs) and aircraft.