Watch now: At least 27 killed, 75 wounded in Ankara blast

At least 27 people were killed and 75 more wounded in a blast in the Turkish capital Ankara on Sunday evening Witnesses say the explosion was in Guvenpark in the Kizilay district close to several bus stops Some vehicles were on fire Gunfire was heard after the explosion, officials told Reuters Ambulances rushed to the area and smoke could be seen rising from about two miles away, a witness told Reuters. Prime Minister Ahmet Davutoglu was convening an emergency security meeting however, no one had claimed responsibility for the attacks Police sealed off the area and pushed onlookers and journalists back warning there could be a second bomb