Desperate relatives yesterday waited for news of missing people a day after a Lagos high-rise building collapsed suddenly, killing at least six people and leaving more trapped inside.
The 21-story building was still under construction when it fell abruptly into a pile of concrete slabs on Monday in wealthy Ikoyi district of Nigeria's commercial capital.
Rescuers say they have managed to pull four people out of the wreckage, but construction workers fear dozens of their colleagues are trapped inside.
Sitting on the pavement near the crushed remains of the building, brothers Fawas Sanni, 21 and Afolabi Sanni, 17, were shellshocked as they waited for news of their sister. "Our sister is inside," said Fawas, a tear rolling down his cheek.
Their 25-year-old-sister Zainab was posted on September 6 to the construction site by the National Youth Service Corps, they said.
"I was the last one who to spoke to her before she went to work yesterday morning," said the older brother, covering his head with his hands.
Building collapses are tragically common in Lagos and across Africa's most populous nation where substandard materials, negligence and a lack of enforcement of construction standards are major problems.
Lagos state police say it is too early to determine why the Ikoyi building collapsed, but Lagos emergency management agency manager Femi Oke-Osanyintolu said infractions had been committed in its construction.
"We are going to get to the roots of the matter to prevent a recurrence. So far six bodies have been recovered, four pulled out alive while three others with minor injuries have been treated," he said.
Two excavators were digging in the pile of concrete early yesterday.
Across the street from the site, Moses Oladipo, 65, was waiting for news from his 50-year-old son, who has three children.
"He just came here to visit his friend, before his flight back to the US where he lives," said the father, crouching on the ground, close to the entrance.
"They rescued a man last night.
" I thought it was him, but no ... I still have hope."
Lagos State Governor has ordered an investigation into the incident.
In one of Nigeria's worst building disasters, more than 100 people, mostly South Africans, died when a church guesthouse crumbled in Lagos in 2014.
An inquiry found the building had been built illegally and had structural flaws.
Two years later, at least 60 people were killed when a roof fell in on a church in Uyo in the east of the country.