Neither the students nor driver was hurt, according to police.
The driver of the bus was Lori Jean Latimer, 52, of the 6600 block of Deep Run Parkway in Elkridge, according to officials.
Police shut down the roadway where the incident took place—northbound Columbia Pike at Tech Road in Silver Spring—to investigate, and officials said they were continuing to research the sequence of traffic signals.
A crisis team from Howard County notified parents and met with students upon their return, according to WTOP.
Anyone with information may contact the Montgomery County Collision Reconstruction Unit at 240-773-6620 or the police non-emergency number at 301-279-8000. Callers may remain anonymous.