Laser dazzles pilot for 'miles' over Oxfordshire
A green laser was shone at an aircraft for several miles as it flew over Oxfordshire on its way to Gatwick Airport.
Officers were called by air traffic controllers when the commercial plane was targeted on Tuesday evening.
Insp Ian Money said the light could have dazzled the pilot or even led to the aircraft crashing.
He said the incident was being treated "extremely seriously" and urged any witnesses to come forward.
Insp Money added: "Shining lasers at an aircraft is potentially very dangerous - they are not toys.
"We take reports like this extremely seriously and will do all we can to find who is responsible."