BANGOR, Maine (AP) — A spokesman for John Travolta says the actor’s dogs were leashed when they were run over and killed at Maine’s Bangor International Airport.

Paul Bloch said Tuesday that the dogs were being walked from the tarmac to a grassy area when the accident happened early last Thursday. The city says a pickup truck struck and killed two dogs after the airplane carrying members of Travolta’s family landed.

It’s unclear whether he was in the cockpit the night his dogs died. The actor, who’s a pilot, often lands in Bangor while en route to his home on Islesboro, off the Maine coast.

Bloch said he doesn’t know the breed of the dogs, and he had no further information. Airport Director Rebecca Hupp says the incident is under investigation.