About 50,000 Pepco customers lost power Friday morning after a tree fell on a transmission line in Prince George’s County.

Pepco officials said more than 44,000 Prince George’s customers and 5,000 District customers were affected by the outage.

Briant Coleman, a spokesman for the Prince George’s County Public School System, said about 28 schools in the central and southern portion of the county lost power for a considerable amount of time on Friday.

School officials chose to keep the schools open, he said.