PORTLAND, Ore. — A large rock fell from a Portland overpass and smashed through the cab window of a mail truck Tuesday, injuring the driver.

Thomas Bennett was traveling eastbound along Interstate 84 when the large U.S. Postal Service truck was suddenly hit by the rock under the Northeast 33rd Avenue overpass.

Responding officers collected the rock as evidence. They noted that it weighed just under 4 pounds.

source: Large rock falls from Portland overpass onto mail truck drive