More than £65,000 of heavy plant equipment has been stolen from two building sites in Chorley.
Police are visiting sites in the borough to warn operators to keep their equipment safe when not in use.
Two three ton Takeuchi excavators – valued at £27,000 each – were stolen from a site off Buckshaw Avenue, Buckshaw Village, between 5pm and 6pm on December 7.
They are described as grey and had the name Arnold Plant Hire on the side.
In the next theft, a dumper truck, worth £11,600, was stolen from the Hoghton Arms, Blackburn Road, Withnell.
A Belle cement mixer, worth £300, was also taken.
The dumper truck is a one ton T Rex, which had blue stickers in the side and the word Gap welded on.
That raid took place between 3pm on December 12 and 7.30am on December 13.
A Chorley Police spokesman said: “We’re not linking the two, but the two thefts are very similar.”
Regarding the Buckshaw Village thefts, the spokesman: “We’re assuming they must have had a vehicle to put them on because of the size.
“They were on rubber tracks.”
Ring police on 101, or Crimestoppers, anonymously, on 0800 555 111.