Troopers responded to more than 6,000 calls for service statewide during the Labor Day weekend, including three fatal crashes, according to statistics provided by Connecticut State Police on Tuesday. From 6 a.m. to 11:59 p.m. Monday, state police responded to 1,315 calls for service, helped 55 drivers and responded to 79 crashes - one of which led to serious injuries and another involving a fatality, state police said. During that same time frame, state police said, troopers made four DUI arrests and issued 89 citations for speeding and one for a seat belt violation. Twelve drivers received citations for hazardous moving violations. During the entire weekend, troopers responded to 6,296 total calls for service. There were 515 drivers cited for speeding, 19 cited for seat belt violations and 282 cited for traffic violations. There were 41 DUI arrests made throughout the weekend. There were 406 crashes reported, of which troopers investigated 375. In total, there were two serious and three fatal crashes, state police said.