At least 13 people have been killed in Bihar in incidents related to heavy rainfall in the state. Heavy rains continue to hit the state capital Patna where three days of unprecedented downpour has flooded homes and hospitals. According to weather department, Patna has received more than 200 mm of rainfall since Friday evening. At least 13 persons have died after buildings collapsed and trees fell on them due to incessant rain in Patna, Bhagalpur and Kaimur districts of Bihar. Seventy-three people have died in neighbouring UP in four days in rain-related incidents in the state.