Officers are carrying out high-visibility patrols and security checks at businesses in Aberdeen after break-ins at bookies.
Police were called to William Hill in Summerhill yesterday morning following reports of masked men entering the shop and stealing cash.
A similar incident was reported at the Coral Bookmaker in Foresterhill Road on Monday night.
Officers are today carrying out extra patrols in the surrounding areas with shops and other retailers also being visited to ensure they have sufficient security measures in place.
Police Scotland are also examining CCTV footage around both incidents and carrying out house-to-house inquiries.
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Detective Chief Inspector Lorna Ferguson said: “Let me stress once again that incidents of this nature are actually very rare in the city.
“It is extremely disappointing that two have taken place in the same week but let me be clear that when crimes like this occur, every effort is made to trace those responsible.
“We are following a positive line of enquiry in relation to both robberies and extensive inquiries were carried out overnight in relation to this which continue today.
“While we carry out these inquiries I would ask that retailers be aware of their security procedures – making your business secure decreases the potential for robbery and increases the safety of the business, your staff and your customers. For further information and advice visit Police Scotland’s website.
“Anyone with information about either incident is asked to contact police on 101 quoting reference number 1086 of Oct 17.”