Garry Humphries' election sign. Contributed

THE 2016 Toowoomba Regional Council election has started to get dirty with corflute election signs being vandalised in the Garden City.

Streets across North Toowoomba were hit by graffiti vandals who targeted the signs of incumbent councillor Chris Tait and council candidate Garry Humphries.

The worst hit areas were in and around North and Stuart Sts.

The graffiti vandal has been labelled the #hamburglar because of the extensive use of a hamburger-shaped stencil.

Orange fluoro paint and a blue paint were used in the attacks.

Chris Tait's election sign. Photo Contributed Contributed

Full colour corflutes cost about $12 each.

Toowoomba police said they would investigate any election graffiti as they would any other act of wilful damage.

Sgt Al Dixon from Toowoomba Police said officers would be patrolling streets and keeping an eye out for suspicious behaviour.

He said police also relied on the public providing information about wilful damage.

Sgt Dixon said members of the public who saw acts of wilful damage could contact Crime Stoppers anonymously on 1800 333 000.

"If they have any footage they can also drop that into the station," he said.