Police have warned members of the public to be vigilant after an increase in the number of vehicles acting suspiciously in the Lurgan area.
Police fear they may be scouting various areas to check out possible homes or businesses to rob.
A spokesperson said: “Often persons are seen in vans driving around estates and businesses observing closely and potentially returning at a later time to commit offences such as burglary.
“Recently a number of power washer thefts have occurred and police would like to remind everyone to lock and secure all valuable personal property.
“If you see anyone acting suspiciously please contact Lurgan Police on 0845 600 8000.”