United Nations, Jan 21 (UNI) Heavy rains have inundated a swath of southern Africa, forcing more than 50,000 people to flee their homes in Mozambique alone, UN humanitarians said on Tuesday. The UN Office for the Coordination of Humanitarian Affairs (OCHA) singled out the town of Xai-Xai, near the Limpopo River and the capital of Gaza province, as the heaviest hit in Mozambique. “Authorities have also issued alerts for downtown Xai-Xai, including warnings of the risk of crocodiles appearing in flooded areas,” OCHA said.