A robbery incident in the Lululemon store in Santana Row was among the piling robbery incidents reported over the weekend.

The store lost $40,000 worth of merchandise to thieves that attacked on Sunday at around 6:30 in the evening, San Jose police say, ABC7 reported.

Authorities said thieves had already fled when they arrived at the location.

On the same day, robbers also targeted the Westfield Valley Fair Mall where multiple cars without showing their license plates had come together, according to the police. A security guard who saw the incident alerted the authorities.

Robbers have already escaped when the police arrive in the area.

Another robbery incident was also reported the same day at around 5:45 in the afternoon at Sam’s Jewelry in Southland Mall. Some eight to ten persons with sledgehammers appeared at the location and started breaking jewelry storage, Hayward police said. The total amount they took was not yet determined.

Hayward police Lt. Mark Ormsby said no arrests were made connected to the incident as suspects managed to escape through multiple cars.

The robbery happened not long before the Lululemon store incident. The police has not yet established the connection of the two cases, Ormsby said.

On Saturday, Nordstrom in Walnut Creek was also attacked by around 80 people. Employees were assaulted and thousands of dollars worth of items were stolen. Authorities arrested three suspects but many others escaped.