Howard Eskin and Ike Reese were forced off the air for 40 minutes Thursday afternoon after the 10-story Lower Merion building where Sportsradio 610 WIP broadcasts from was evacuated when employees smelled smoke.

"[I] think it may have been Charlie Manuel," Eskin joked on his Twitter page. "Didn't want to hear me talk about his double switch."

The fire alarm went off at about 5 p.m. and most evacuated the building at Bala Plaza near City Avenue, said Andy Bloom, program director for WIP.

Bloom and the rest of the sports radio staff stuck it out until 5:25 p.m. when Bloom said he smelled "something electrical burning."

"Fire emergency at 610 WIP," Eskin tweeted. "We had to bail out of studios. I'm ready to head back but they won't let me."

Talk radio 1210WPHT and 98.1 WOGL are also located in the building.

It is not clear whether there was an actual fire but, according to Bloom, firefighters located a fan in a lower level garage that may have been responsible for the smell.

WIP was back on-the-air by 6:05 p.m. Fire fighters left the building at 6:10 p.m., police said.