Police Scotland today appealed for information after two separate attacks on buses in Dundee.
The first happened at 6.10pm on Friday when the window of a moving bus was smashed in Longhaugh Road.
Officers are keen to trace six youths, wearing hooded tops.
Then at 8.15pm yesterday the window a moving bus was smashed in Cheviot Crescent. Officers are keen to trace five youths, wearing hooded tops, in connection with that incident.
Anyone with any information is asked to contact Police Scotland on 101.