The lorry crashed into the three-wheeler which was heading towards Embilipitiya from Ratnapura.Both vehicles crashed head-on killing the three people in the three-wheeler. The driver of the lorry has been arrested. Three people wee killed in an accident involving a three-wheeler and lorry in the Udawalawa area this morning, the police media unit said.The police said that the lorry was heading to Ratnapura from Embilipitiya when the accident took place.