Emergency responders on Tuesday rescued two persons from the helicopter that crashed into a building at Oba Akran Road, Ikeja.
According to a witness, the incident happened at about 3.30 p.m.
Mr Ibrahim Farinloye, territorial coordinator, National Emergency Management Agency (NEMA), confirmed the incident to newsmen in Lagos.
Mr Farinloye said that the occupants of the helicopter included two crew members and two white men.
Meanwhile, the responders said they would provide further information on the incident.