BOSTON (CBS) – The Callahan Tunnel has reopened following a single-car rollover crash that caused traffic delays Saturday afternoon in Boston, officials say.

Massachusetts State Police were called to Route 1 eastbound at the tunnel around 3:45 p.m.

READ MORE: Mitt Romney Taken To Hospital For 'A Lot Of Stitches' After Fall In Boston

Police say a person was injured and taken to Massachusetts General Hospital.

READ MORE: Massachusetts Man ID'd As Victim In One-Punch Vegas Slaying

The extent of their injuries is unknown.

Traffic was backed up in the area for about 30 minutes.

MORE NEWS: Thousands Of Boston Elementary School Kids Return To The Classroom

All lanes were reopened around 5 p.m., according to the Massachusetts Department of Transportation.