Among the facilities damaged were the South Rovers netball rooms at Walter Oval off Coulstock Street.

Netball posts were ripped out of the courts and one was smashed through the toughened glass of the rooms’ entry door and another put through a toilet window.

Nothing appears to have been taken from the rooms but damage to the glass door and window is estimated to be hundreds of dollars.

The damage was discovered on Saturday morning.

In another nearby incident, a shed was damaged during an attempted break-in overnight on Friday to one of the Warrnambool Pony Clubs sheds off Coulstock Road.

In the third incident, pickets on the new picket fence around a cricket oval at the Allansford cricket ground have been broken.

Police have appealed for information in all three incidents and people are asked to contact Warrnambool police.