Pittsburgh ? Two college students charged with trying to break into Heinz Field last weekend were pranksters, not terrorists, the FBI said.

“This appears to be two kids who did something stupid, and it came on the heels of the threat last month to blow up football stadiums,” FBI Special Agent Jeff Killeen said. “Any suspicions that were raised concerning terrorism were addressed and dismissed.”

Carnegie Mellon students Sudeep Paul, 21, and Anand Durvasula, 20, remained jailed Tuesday, unable to post $1 million bond each. Police said they were caught trying to climb into the stadium about 2 a.m. Sunday, 14 hours before the Pittsburgh Steelers played the Denver Broncos.

Authorities believe the men were trying to sneak into the stadium so Paul, a film student, could videotape Durvasula for a homemade music video.