Two bikes worth a combined total of £900 have been stolen.
A white framed Aggressor ST2 GT mountain bike worth £500 was stolen from a back garden in Fambridge Road, Maldon, between 8.30pm and 10.30pm on Friday.
A second Aggressor GT mountain bike, which had been secured at the Blackwater Leisure Centre in Park Drive, was stolen on the same day between 1pm and 11pm. It was worth £400.
Police believe the thefts might be linked. Anyone with information should call Maldon police on 101.