A Kansas City streetcar unit was out of service Tuesday after one of its windows was shattered.
A passenger noticed the damaged window about 3 p.m. near Pershing and Main streets.
Streetcar service was delayed after the report, but it was back running shortly before 4 p.m.
The unit was removed from the line and later underwent repair.
An unknown object caused the damage, police said.
No injuries were reported in the incident.