Police say the number of robberies at Jersey City?s Newport Centre Mall has risen significantly since December.

In the first case on Dec. 27, police say two robbers beat up two GameStop employees who were in possession of night deposits. The suspects made off with $27,000.

Detectives say over the last two weeks, two men were caught on camera posing as undercover security guards and approaching boys in their teens. According to police, both teens had shopped at GameStop and both were robbed.

One police officer calls the security cameras outside the mall the worst surveillance cameras in the city.

Newport Centre?s public relations firm released this statement: ?Our primary concern is always for the safety and well-being of our shoppers and mall employees. We are fully cooperating with the Jersey City Police Department in its investigation and strongly encourage mall visitors and employees to alert mall security to any suspicious activity.?

For an interview with police about the robberies, go to channel 612 on your iO digital cable box and select iO Extra.