The road was closed for a time after a suspicious object was found.

Security alert at Kennedy Way offslip @ M1 continues, the motorway is closed in both directions between Black's Rd & Lisburn. #TravelNI

— PSNI (@PoliceServiceNI) October 7, 2013

The arrests were made when detectives stopped a car on the Anderstowon Road.

Security forces are dealing with two other alerts in Belfast city.