A father and his two children were killed in an explosion in the eastern Turkish province of Elazig on Saturday, security sources said.Çetin Yıldırım and his two sons were killed when a blast took place in an open field outside Bozçanak village of Palu district.The three were reportedly in the Hanönü area to dump garbage piled in a wheelbarrow.Ambulances and a large number of security forces were dispatched to the area following the incident.An investigation has been launched to find out the cause of the blast.