PORTLAND, Maine (AP) Law enforcement officers from New England and Canada were in attendance at a funeral for a Maine State Police detective who was killed while assisting a driver.

Detective Ben Campbell was fatally injured when a tire dislodged from a logging truck and struck him while he was outside his vehicle on April 3 alongside I-95.

About 3,000 people were in the crowd Tuesday.

The Cross Insurance Arena was silent, except for the sound of footsteps as troopers and others filed in. Outside, fire boats in Portland Harbor blasted water skyward in salute.

The 31-year-old Campbell was known for a friendly smile.

He was headed to a training event when he stopped to help the driver. He died at a Bangor hospital. He is survived by his wife and baby.