The heaviest rainfall in more than half a century, three days worth, has caused devastating floods in Tanzania, killing at least 23 people, officials say. The government-owned Daily News reported at least 4,000 people were forced out of their homes in Dar es Salaam, CNN said. Philippe Poinsot, director of the U.N. Development Program, said the combination of the three-day deluge and high tides has been devastating for the capital, a low-lying city on the coast. Major roads were under water, the BBC reported. Shaaban Ramadhan Hussein said his home, which is also his workplace, was covered by the floods. \"Everywhere is flooded, people are on top of their house roofs, no rescue has come so far. We are not happy, it is like the government doesn\'t care about us,\" he told the BBC. The Tanzania Meteorological Agency said the rain was the heaviest the country has had in 57 years. Forecasters said the rain will continue and urged everyone living in low-lying parts of Dar es Salaam to evacuate.