In Nigeria's port city of Lagos, anxious relatives wait for news about their loved ones.<br/> <br />As many as 50 people are still trapped under the rubble of a four story building that collapsed while under construction on Monday.<br/> <br />Authorities say the number of dead has risen to at least five.<br/> <br />Families mill about the debris as rescue workers pull out more bodies.<br/> <br />One of the survivors, a construction worker, says he was inside the building when it started to come down.<br/> <br />(SOUNDBITE) (English) ABABIO SAMSON, CONSTRUCTION WORKER, SAYING:<br/> <br />"I was up there at the last decking when the building just collapsed so from there, the building just took us to the ground; they used rope to carry us out."<br/> <br />This is prestigious Victoria Island, on a lagoon set back from the Atlantic, home to some of Africa's most expensive real estate.<br/> <br />Building disasters are common in Nigeria.<br/> <br />Regulations aren't always enforced, and that often leads to structures erected quickly a