CHICAGO — Four people were killed early Sunday morning after a Chicago Transit Authority bus and a car collided on the city’s Near West Side, according to police.

Police said the head-on collision occurred just before 6 a.m., blocks away from the United Center, the stadium that is home to the Chicago Bulls and Chicago Blackhawks. Ages and genders of the dead — all of whom were in the car — were not immediately available.

The vehicle was driving westbound on the 2600 block of West Madison Street at high speeds and struck a parked car just before colliding with the bus, which was traveling in the opposite direction, according to Office Michelle Tannehill, a Chicago Police Department spokeswoman.

In addition to the four dead, five others — four passengers on the bus and the bus driver — suffered non life-threatening injuries and were transported to area hospitals, according to police.

Photos from the scene posted on social media were chilling; the passenger vehicle was badly damaged.

The CTA is one of the busiest public transportation systems in the country; about 500 million riders use its bus and train network annually.

Follow USA TODAY Chicago correspondent Aamer Madhani on Twitter: @AamerISmad