ANKARA, Turkey—At least five people have been killed and three people are missing after heavy rains hit Turkey’s northeastern Black Sea coast, triggering floods and landslides, officials and reports said Thursday. The heavy downpour struck the tea-growing province of Rize late on Wednesday, sweeping away cars and causing a number of houses to collapse. Video images from the region also showed mudslides destroying tea plantations. A 75-year-old woman was found dead amid the debris of her three-story house in Rize’s Muradiye district, state-run Anadolu Agency reported. Rescuers also recovered the bodies of three people who died after mudslides partly destroyed a wooden house. The victims also included the head administrator of the nearby village of Asmaliirmak, who died after being swept away by the raging waters. Rescue teams sent to the region were searching for three people who remain unaccounted for, state broadcaster TRT reported. The private DHA news agency …