Al-Quds city, Oct 26, SPA -- A blast that killed three people in a building in Tel Aviv on Wednesday was believed to have been caused by explosives, Israel Radio said. The blast occurred on the third floor of a four-storey building in the Jaffa port district. Israel's ZAKA rescue service said three people died in the explosion, and an ambulance service said five people were injured. --SPA 1430 Local Time 1130 GMT www.spa.gov.sa/298833