Emergency workers in Nigeria fought fires and searched for bodies
through the night after an airliner crashed, killing all 153 on board.
Rescue officials said today they fear many people may have perished on the ground too.
A Nigeria Red Cross report said that 48 bodies had been recovered so far, but more are being dug out from the rubble.
After pilots reported engine trouble, the Boeing MD-83 of Dana Air crashed into businesses and crowded apartment buildings near Lagos' Murtala Muhammed International Airport on Sunday, the worst air disaster in Nigeria in nearly two decades.
"The fear is that since it happened in a residential area, there may have been many people killed," said Yushau Shuaib, a spokesman for Nigeria's National Emergency Management Agency.
The cause of the crash remained unclear. The pilots radioed to the Lagos control tower just before the crash, reporting engine trouble, a military official said.
Rescue workers searched for the aircraft's black box recorders where flight data is stored, said Harold Demuren, the director-general of the Nigerian Civil Aviation Authority.
The aircraft appeared to have landed on its belly amid clear, sunny skies on to the dense neighbourhood that sits along the typical approach path taken by aircraft heading into Lagos' Murtala Muhammed International Airport.
The plane tore through roofs, sheared a mango tree and rammed into a woodworking studio, a printing press and at least two apartment buildings before stopping. The plane was heading to Lagos from Abuja, the capital, when it went down.
A white, noxious cloud rose from the crash site that burned onlookers' eye. Pieces of the plane were scattered around the muddy ground.
While local residents helped carry fire hoses to the crash site, the major challenges of life in oil-rich Nigeria quickly became apparent as there wasn't any water to put out the flames more than three hours later.
Some young men carried plastic buckets of water to the fire. Fire trucks, from the very few that are stationed in Lagos state with a population of 17.5 million, couldn't carry enough water. Officials commandeered water trucks from nearby construction sites, but narrow, crowded roads prevented them from reaching the crash site.
The dead included at least four Chinese citizens and two Lebanese, it was reported.
Nigeria, home to more than 160 million people, has a history of major aviation disasters, though in recent years there hasn't been a crash. In August 2010, the United States announced it had given Nigeria the Federal Aviation Administration's Category 1 status, its top safety rating that allows the West African nation's domestic carriers to fly directly to the US.
But many travellers remain wary of some airlines. The country is beset by government corruption and mismanagement.
On Saturday night, a Nigerian Boeing 727 cargo airliner crashed in Accra, the capital of Ghana, slamming into a bus and killing 10 people. The plane belonged to Lagos-based Allied Air Cargo.
Lagos-based Dana Air has five aircraft in its fleet and runs both regional and domestic flights. It has announced on its website that all today's flight have been cancelled. Local media reported a similar Dana flight in May made an emergency landing at the Lagos airport after having a hydraulic problem.
At the crash site police with cadaver dogs searched for bodies inside the wreckage. Overnight officials brought in a large crane from a local construction company to lift pieces of debris away. They also brought blow torches to cut through what remains of the plane. The debris still smouldered today. Some wore masks to try to protect themselves from the stench of the dead.
They used the crane from the construction site to lift the tail of the aircraft. The metal shrieked as it lifted skyward and was dropped down. Investigators then climbed ladders to begin to look at its tail.
Nigeria has tried to redeem its aviation image in recent years, saying it now has full radar coverage of the entire country. However, in a nation where the state-run electricity company is in tatters, the power grid and diesel generators sometimes both fail at airports, making radar screens go blank.
Sunday's crash appeared to be the worst since September 1992, when a military transport plane crashed into a swamp shortly after takeoff from Lagos. All 163 army soldiers, relatives and crew members on board were killed.
