The employer of a man whose carry-on bag was found to contain a small explosive device at the Anchorage airport says he was carrying avalanche-control equipment.

The device triggered an hour-long shutdown of security screening at the airport Sunday afternoon.

A statement issued Monday by ConocoPhillips Alaska said the device was for avalanche control and there was no ill will intended.

Conoco spokeswoman Amy Burnett told The Anchorage Daily News she could not release any personal information about the passenger or say if he faces any criminal charges.

The FBI in Anchorage says it plans to release a statement on Tuesday.