LOS ANGELES (CBSLA.com) — Officials confirm to CBS2 and KCAL9 that a plane attempting to leave Los Angeles International Airport Saturday afternoon was grounded after a phone threat.

According to the LAX Police, a call threatening an aircraft was phoned in approximately 4:40 p..m.

The flight, tentatively identified as a United Air twin jet scheduled to leave about 5:55 p.m., was preparing to board passengers.

The plane was reportedly headed to London’s Heathrow Airport.

Bomb-sniffing dogs have gone through the plane and cargo.

“The aircraft has been relocated to an isolated area on the airfield as a precautionary measure,” wrote Belinda Nettles, public information officer for LAX Police.

Nettles said an investigation involving LAX Police, Federal Bureau of Investigation, LAFD and the LAPD Bomb Squad was conducted.

The plane was cleared without incident at approximately 8:40 p.m., reported Nettles.