An explosion in the Turkish Mediterranean resort town of Antalya Sunday killed four people and injured over 25, local TGRT television reported. The blast occurred near a waterfall in the tourist area of Manavgat, said Fikret Dayioglu, a local official with responsibilities similar those of a mayor. It appeared that the explosion was caused by a gas canister. Dayioglu said security forces were brought into the area and that officials were working to determine the identities of the casualties. Officials did not know yet whether any Israelis were harmed in the incident, although Norwegians and Ukrainians were counted among the casualties.