The truck was driving east on Chicago Avenue, and had a green light to turn south onto Columbia Avenue about 8 a.m., police said.
The man was crossing Columbia Avenue in the crosswalk when the truck hit him, police said.
He later died, police said.
SEE ALSO: 2nd pedestrian killed by Metra BNSF train in less than 24 hours in Downers Grove
The man killed was not immediately identified.
The truck driver was arrested, pending charges. Police did not immediately provide any information about the driver.
Police continue to investigate the fatal crash.
This is a developing story; check back with ABC7 Chicago for updates.