Three people were injured in four accidents that occurred within minutes and miles of each other Tuesday afternoon.
One of the crashes involved a fire truck being struck as responders assisted with other wrecks, officials said.
Bay St. Louis Police Capt. Wes Mayley said officers responded to a wreck in the eastbound lanes of Interstate 10 just east of the Jourdan River bridge. The officers assisted Diamondhead police.
As the officers were leaving, they had to turn around and respond to two more crashes, both in the eastbound lanes of I-10 just before the Mississippi 603 overpass.
One of those crashes required two people to be extricated from a vehicle.
Then a Diamondhead fire truck, providing assistance on the shoulder of the interstate, was struck from behind, Mayley said.
In all, three people were injured, with two receiving serious injuries. None of the injuries appeared life-threatening, Mayley said.
The wrecks tied up traffic before the final accident was cleared just before 6 p.m.