In each case, the suspects were described as white or Latino men in their 20s. They wore black ski masks or hooded sweatshirts pulled tight around their faces, as shown in the accompanying surveillance photos from a Feb. 4 robbery, according to a Sheriff's Department news release.
The suspects have been linked to robberies at the Hoa Viet restaurant, 3110 Bradshaw Road, and the Star of Siam Thai Food, 6029 Greenback Lane on Jan. 31; Original Pete's Pizza, 4521 Gateway Park Blvd., Feb. 2; and Adalberto's restaurant, 5544 Watt Ave., Feb. 4.
They also are believed to have been involved in a carjacking Feb. 4 in the 100 block of Riverside Boulevard in Roseville. The vehicle taken in the carjacking, a 2012 gray Nissan Altima, was later used as the getaway vehicle in a robbery the same day, officials said.
The suspects have been armed with black semiautomatic handguns and a dark-colored revolver. One of the handguns was described as having an extended magazine.
Authorities said the suspects have entered the businesses and demanded money from the cash register as well as personal property from employees and customers.
Anyone with information regarding the identity or the suspects or pertaining to any of the cases, is asked to call the Sheriff's Robbery Bureau at (916) 874-5051. Tip information also can be left anonymously at www.sacsheriff.com, by texting to 274637 and entering the keyword "SSD", or by calling (916) 874-8477.