MILWAUKEE -- Milwaukee police are investigating three armed robberies at three different restaurants.
All three crimes happened in a span of about 90 minutes early Wednesday morning.
The first robbery happened just before 5 a.m. at the Denny's near 27th and Howard.
The manager of the restaurant said the only customers in the 24-hour restaurant had just left when two suspects barged into the business demanding cash. He said both suspects were wearing masks and one had a gun.
The suspects took the cash and ran from the store on foot.
The second robbery happened about 30 minutes later at 5:30 a.m. The target this time: The Denny's on Brown Deer Road near 76th Street.
Police said two suspects entered the restaurant and got away with cash.
The third robbery happened just after 6 a.m. at the George Webb near Oakland and Locust.
Police said two armed suspects wearing masks entered the restaurant, stole cash from the register and then ran away.
Customers trying to eat at the 24-hour restaurants were shocked to hear that three restaurants were targeted.
"We said let's do breakfast this morning. I can't believe this happened. It's shocking. It's scary," said Tazz Leach, who said she eats at the Denny's on Brown Deer Road at least once a week.
The manager of the Denny's on South 27th Street said he is now going to hire security guards to work seven nights a week.
Both Denny's have security cameras and Milwaukee police said they are working to see if all three robberies are connected.