The PSNI has issued traffic alerts ahead of Monday’s Belfast marathon.
It begins at 9am and police said motorists can expect disruption from 6.30am to 11pm in Belfast city centre, east Belfast, and the Sydenham Bypass.
They also said from 9.30pm to 1.30pm arterial routes in north Belfast will be affected, including Shore Road Newtownabbey, the M2 Greencastle and Dargan Road; then from 11am to 3pm there will be disruption around Oxford Street, the Ormeau Road and Ravenhill Road.
Tens of thousands will be taking part in the events including the full marathon, relay race and fun run.
Among them will be 50 people participating in support of the WAVE Trauma Centre.
The centre said: “Some are running to support the overall work of WAVE with those bereaved or injured, others in memory of Paul O’Connor a member of WAVE’s Management Board who died suddenly just before Christmas, and a team of walkers in support of our work with families of the disappeared.”