This video reportedly shows the shocking moment a car bomb killed 27 people in the heart of the Turkish capital Ankara today.
The deadly blast, which also wounded 75 people, comes less than a month after a similar attack killed 29 people in an area nearby.
In the clip a bus can be seen before a blinding white light is followed by fire on the streets.
The blast could be heard 1.5 miles away and a large cloud of smoke could be seen rising over the city centre, a witness said.
A senior security official said the blast appeared to have been caused by a suicidecar bomb.
A second security official said gunfire was heard after the blast. There was no immediate claim of responsibility.
The area, close to a courthouse and the Justice and Interior Ministries, was crowded when the explosion happened at 6.43pm local time (4.43pm GMT) state broadcaster TRT said.
TRT said a vehicle had exploded at a major transport hub, hitting a bus carrying some 20 people near the central Guven Park and Kizilay Square.
The government has said the previous car bombing in Ankara on February 17 was carried out by Kurdish militants.
That attack struck near Turkey’s military headquarters, parliament and other key government institutions.
Islamic State militants have meanwhile carried out at least four bomb attacks on Turkey since June 2015.