Thieves are targeting ATM machines located inside eastern Waikato businesses - ripping one from the wall in a recent incident, police say.
The two break-ins have left police urging business owners to take basic security steps to avoid potential losses.
Detective Simon Everson of the Waihi CIB said thieves had broken into a supermarket in Whangamata last Thursday and a chartered club in Waihi Beach on Sunday.
"It appears the offenders have broken into the premises using a jemmy bar and then used the same bar to open the front of the machine and take out the money tray making off with sizeable sums of money in each case.
"In the case of the club at Waihi Beach the offenders actually ripped the machine right out of the wall as it was built into an alcove and they could not jemmy the door without pulling it out.''