NEWCASTLE, Wyo. (AP) — An employee with the Wyoming State Forestry Division died of an apparent heart attack while participating in an annual pack test in Newcastle.

Wyoming State Forester Bill Crapser says the man was participating with other employees in the annual firefighter work capacity test when he collapsed Saturday. Efforts to revive him at the scene were unsuccessful.

Crapser says the forestry division is "deeply saddened by this tragic event."

The man's name has not been released.