A fire at the WABC-TV studios in Manhattan knocked out Sunday night's programming and caused the evacuation of the television network's building.

Channel 7's Sunday night broadcast was suspended a few minutes before the 11 p.m. news. The broadcast covers the tri-state area.

Kenny Plotnik, the station's news director, said that the blaze started when one of the lights in the first-floor studio burst and a curtain caught fire. A spokesman for the New York Fire Department said they were still investigating the cause.

Plotnik said the fire was put out quickly, but that it sent smoke throughout the building, forcing about 50 staff members to evacuate.

They were working on getting the station back on the air to broadcast the news at 5 a.m., he said.

Several shows are recorded at the studios, including "Live with Regis and Kelly."