We’re trying to trace these three people after a rock was thrown through the window of a house on Grove Road in Risca.
It happened at about 10.50pm on Monday 5th October. No-one was injured.
The same evening, 10 minutes later, a brick was thrown through a window of a house on New Park Road.
Anyone with any information is asked to call Gwent Police on 101, quoting 2000364020, or you can direct message via Facebook or Twitter.