Nigeria, June 25 -- Several people, including a site engineer and a contractor, are reportedly trapped under the rubble of a collapsed five-storey building in Port Harcourt, Rivers State.

The building was under construction when it caved in on Wednesday. Emergency responders have been trying to rescue survivors.

The building collapsed along Peter Odili Road, Trans-Amadi, Port Harcourt, at about 9 a.m., according to witnesses, triggering panic among residents and workers in the area.

As of Wednesday night, three persons had been rescued alive from the debris, according to reports by News Central TV.

Rescuers were still searching for other victims believed to be trapped beneath the collapsed structure.

One body was also recovered from ...