Ahead of the arrival of US President Joe Biden to Northern Ireland on Tuesday, Translink has warned passengers about possible delays to services during his visit.
It is understood that Mr Biden will arrive in Belfast on Tuesday, April 11 and leave for the next stage of his visit to Ireland on Wednesday, April 12.
Ulster University confirmed President Biden would give a key address at their new Belfast campus at the beginning of his visit.
Read more: All details for President's arrival in Northern Ireland
Translink has said that this may impact their services in the Belfast city centre area on both Tuesday and Wednesday.
A spokesperson for Translink said: “Due to the US Presidential visit, passengers are advised to expect some service disruption, diversions and delays in and around Belfast City Centre on Tuesday 11th and Wednesday 12th April 2023.
“Customers should leave extra time for their journeys and follow the latest travel advice on social media @Translink_NI, visit www.translink.co.uk/service-updates or call 028 90 66 66 30.
“We would like to thank our customers for their patience during this period.”
Motorists can also expect some traffic disruption during the President's visit and a PSNI spokesperson said officers were putting in place an appropriate policing operation.
The PSNI said: "We are engaging with local communities and business who may be impacted.
"We are also working to develop effective traffic and crowd management plans that will help to keep disruption to a minimum. There will be traffic disruption on Tuesday and Wednesday and will we continue to provide further updates."
Those travelling in the vicinity of the Belfast International Airport have been asked to allow for extra time for their journey.
On Monday, a spokesperson for the PSNI said: "There will be traffic disruption on the vicinity of Belfast International Airport in the lead up to the visit of President Biden to Northern Ireland this week.
"Those travelling to and from the airport should expect delays and allow extra time for their journey."
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