In Kenya"s southern town of Mai Mahiu, a dam burst its banks, killing at least 42 people, authorities said. There has been heavy rain across east Africa driven by El Niño, a naturally occurring climate pattern usually associated with increased heat worldwide. Kenya"s government has said almost 200,000 people have been displaced and at least 100 people killed since March. Neighbouring Tanzania has also been affected Dozens of people killed as dam bursts in Kenya