By Amy Napier Viteri
ATLANTA (WSB/CNN) - Georgia Power is investigating an explosion that sent several manhole covers into the air in downtown Atlanta.
People downtown heard the explosion for blocks around 7 p.m. Monday.
"They said that it's a fire up underground and it blew off the manhole," said neighbor Desiree Bennett.
Police blocked off portions of Peachtree Street and MLK Jr. Drive for hours. The fire department and crews from Georgia Power investigated what caused several manhole covers to shoot into the air in what witnesses described as explosions.
"Amy there was fire and I could not believe. We could not believe what we saw," said Bennett.
Bennett lives downtown. She says just minutes later a second manhole cover blew, breaking it in half.
"It broke in two mid-air. So that was enough to tell me to leave," she said.
WSB-TV saw Georgia Power crews at the corner of Broad Street examining one split manhole cover. A spokesperson says cables in an underground vault caught fire which led to about five manhole covers blowing off. Bennett says she talked with a bus driver who had just driven over one of the covers when it flew into the air.
Power crews are working to learn how the cables caught fire inside the secured vault. Bennett left home for several hours Monday night and said she was nervous about returning.
A Georgia Power spokesperson says up to 10 buildings may have lost power in the incident, but no one was hurt.