Pennsylvania State Police said 247 people were injured and eight people were killed in crashes investigated by troopers during the Fourth of July holiday.
Troopers investigated a total of 695 crashes between Thursday and Sunday.
Seventy-two crashes were alcohol-related, including two of the fatalities. Two of those killed were not wearing seat belts, police said in a news release Monday.
Troopers arrested 487 people for DUI, issued 9,646 speeding citations, cited 870 motorists for failing to wear seat belts and issued 201 citations for not securing children in safety seats.
Last year, there were eleven fatalities and 241 injuries in the 811 crashes investigated by state police.
The statistics do not include incidents investigated by other law-enforcement agencies.