A masked gunman robbed a Mission Valley bagel shop, after throwing a rock through the front door to get inside.
Once inside the man ordered the three employees at Einstein Bagels to get down. The robber stole an undisclosed amount of money and left through the rear door, police said.
The robber matches the description of a suspect that robbed the same store three weeks ago, investigators said.
The man is described as a white male in his 30's.
The SDPD robbery unit is investigating.