Search for suspect after firework is thrown into food truck in North Lawndale

CHICAGO (CBS)-- Police are searching for the suspect who threw an explosive device into a food truck, causing damage in North Lawndale. 

Chicago police said a man was inside the food truck, in the 3300 block of West Roosevelt Road just before 9 p.m., when he saw someone light and throw a firework into the truck. 

The man had a small cut on his leg. 

The suspect ran off. No arrests have been made.