A train driver suffered injuries to their face after a brick was thrown at a moving train in Greater Manchester.
The brick smashed the carriage windscreen, with shards of glass hitting the driver, as the Northern train travelled towards Clifton station at 10pm on Friday, 4 February.
The train operator says the driver was taken to hospital with injuries to his face and eyes and is now recovering at home.
A spokesperson from Northern said it is "not acceptable and puts many lives at risk" and has offered a £1,000 reward to anyone that can help lead to a conviction.
Investigating officer in the case, PC Dan Naylor, said: “We are urgently seeking information following this reckless incident which could have had far more serious consequences for the driver.
“Anyone with information is urged to come forward to help us find whoever is responsible.
“No one should feel unsafe at work, and any incident involving rail staff on our network is taken extremely seriously.”
Witnesses, or anyone with information can contact BTP by texting 61016 or calling 0800 40 50 40 quoting reference 531 of 04/02/22.
Alternatively, you can call Crimestoppers anonymously on 0800 555 111.