Brisbane cyclists believe they are victims of “mantraps” after coming across thumbtacks glued to metal strips along their favorite riding spots this past month.

Bicycle Queensland CEO Anne Savage said cyclists could be killed riding over thumbtacks deliberately left on the ground and those who commit the act will be found and charged with the full force of the law.

Throughout February four instances were reported when cyclists riding through Wynnum, Manly and Birkdale punctured their tyres after riding over thumbtacks left on the ground.