Driving fatalities over the New Year's holiday weekend increased sharply over last year, but crashes and injuries declined, state police said today.

Eleven people were killed and 220 others were injured in the 693 crashes investigated by state troopers during the four-day New Year's holiday driving period, State Police Commissioner Frank E. Pawlowski said in a statement.

He said 76 of the crashes to which troopers responded from Dec. 30, 2010, through Jan. 2, 2011, were alcohol-related, including four crashes that resulted in a total of five deaths. Six of the 11 people who died in crashes were not wearing seat belts, he said.

Pawlowski said troopers made 267 arrests for driving under the influence and issued 4,012 speeding citations during the holiday period. State police also cited 458 persons for failure to wear seat belts and issued citations to 42 drivers for failing to restrain children properly in safety seats, he said.

During the 2009-2010 New Year's holiday driving period, six people were killed and 288 others were injured in 1,131 crashes investigated by state police, the release said.

The crash numbers cover only those incidents investigated by state police and do not include crashes covered by other law enforcement agencies. For more information, visit www.psp.state.pa.us.

Contact staff writer Kathleen Brady Shea at 610-696-3815 or kbrady@phillynews.com.