PORT-AU-PRINCE, Haiti (CNN) -- Rescue workers continued to search for survivors Saturday after a school collapse killed at least 50 children in Petionville near the Haitian capital of Port-au-Prince.
Clarens Renois, a journalist with the Haiti Press Network, said nearly 200 children remained trapped under rubble as of midnight Friday.
As many as 700 children were inside when the building collapsed around 10 a.m. ET Friday, officials said. Some were in class and others were in a playground, Haitian media reported.
"We are looking at major casualties here," said Alex Claudon, a Red Cross official on the scene.