HARFORD COUNTY, Md. (DC News Now) — Maryland State Police (MSP) said it was at the scene of a single bus crash that left one dead and others injured Sunday morning.

Police said that just after 6 a.m., they responded to the scene of a single-vehicle bus crash on I-95.

MSP said a bus with 24 people was traveling north on I-95 when, for reasons still not known, it lost control and struck a guardrail. 

One person died at the scene and multiple were sent to the hospital.

Police said all northbound lanes of I-95 at mile marker 77 are closed for investigation.

Drivers are being urged to plan alternate routes while officers continue to investigate the crash.