The crashes were reported one block from each other about 20 minutes apart, and one crash involved a bus, according to the Denver Police Department.

DENVER — Denver Police were investigating two crashes involving pedestrians that left one person dead Sunday morning. The crashes were a block apart from each other but not related, police said. One crash happened near 22nd Avenue and Lawrence Street, involving a motor vehicle and a pedestrian, according to police.

A Denver police officer working "traffic support" during a demonstration against immigration policies when a car unintentionally struck the officer at an intersection.

The crash happened around 11:15 a.m. near 22nd and Lawrence Streets. Investigators later said the person struck by the car died at the hospital. The driver and a passenger were also taken to the hospital with unknown injuries.