The San Diego Police Department opened an investigation after two armed robberies occurred in Rancho Bernardo and Clairemont​ on March 22, the San Diego Union-Tribune reported.

The first robbery was reported at CVS at 12:01 a.m. on Bernardo Center Drive. The article said the robber was armed with a semi-automatic handgun. He walked into the store and demanded the cashier to hand over money. The suspect reportedly took the money as well as cigarettes before he fled the scene.

The second robbery occurred just a minute later on Clairemont Mesa Boulevard's C & R Food Mart. According to the Union-Tribune, a man allegedly entered the store with a scarf over his face, pointed a gun at the clerk and demanded money.

No one was injured as a result of the robberies, according to the source.

Weekend robberies launch investigation
San Diego police were also busy on March 16 with two other robberies. According to ABC affiliate 10 News, four armed robbers walked into two businesses, also on Clairemont Mesa Boulevard as well as on Bernardo Plaza Drive.

At around 6:30 p.m. March 16, employees from the AT&T store in the Bernardo Town Center were forced into a room when two men wearing masks walked in with a handgun, 10 News reported.

"They were actually tied up while the property was taken from the store," San Diego police Lt. Paul Rorrison said of the store employees.

A witness whom did not want to be identified allegedly saw the two men carrying stolen items out of the store, according to 10 News.

"I just looked up and saw these two guys walking by with big black jackets on with the hoods up and I thought that's really weird because it's not that cold outside - why are they so bundled up?" she said. "And then I looked down and they were dragging a big bag."

Paramedics were called when an employee at the AT&T store reported trouble breathing after the robbery but was not treated, the news report stated.

The second robbery occurred at Mercury Books Inc. on Clairemont Mesa Boulevard. 10 News said two men walked in and one displayed a handgun before demanding cash from an employee. They allegedly grabbed the cash and walked out of the store.

No one was injured during the bookstore robbery.