"Any time we lose a trooper hurts, but today is Christmas Eve here on December 24, so it kind of hurts in a particular way," ISP Dir. Brendan Kelly said.

A 35-year old Illinois State Police trooper has died after being struck by a vehicle on Interstate 55, the latest of more than two dozen roadside crashes involving state police this year, authorities announced Tuesday.

An Illinois State Trooper was killed Monday night in Will County when he was struck by a car while removing debris from an expressway.