Three people have been arrested following a string of pizza delivery robberies in Iowa’s capital city. Des Moines police say the three people worked as a group by placing pizza orders and then robbing the delivery drivers of cash.

There were five robberies this month alone. In each case, the delivery driver arrived at a home and was approached by two or three people with guns. The suspects stole over $400 and pizzas in three of the robberies.

The suspects are identified as 21-year-old Jordan Dawson, 17-year-old Destinee Cleaton and 16-year-old Derrick Kelly. A fourth suspect is being sought.