During the three-day Fourth of July holiday driving period, which took place July 3-5, Pennsylvania State Police troopers investigated a total of 581 crashes that resulted in injuries to 146 people.

Troopers responded to two fatal crashes, in which three people were killed. Alcohol was a factor in 37 of the crashes investigated.

State police arrested 316 motorists for driving under the influence and issued 8,577 speeding citations during the period. Troopers also cited 778 people for not wearing seat belts and issued 173 citations to drivers for failing to secure children in safety seats.

During last year’s holiday driving period, which spanned four days, 13 people were killed and 259 others were injured in the 741 crashes that state troopers investigated.