[1] Drivers would often face hijackings, assaults and robberies while operating Ulsterbus services, their buses being turned into burning barricades or occasionally being bombed.

There are also a number of cross-channel (North Channel) services to Britain, operated in partnership with National Express[12] under the Eurolines banner.

The rebranded service, representing an investment of over £3 million, included 19 brand new buses delivereed and many others refurbished to operates across 14 quality bus corridors with new timetables.

[14] In 2022, £30 million of funding from the Department for Infrastructure was acquired for the purchase of 38 battery electric buses, as well as charging equipment to be installed at the Foyle Metro's Pennyburn garage.

[15] The buses, ten being Wright StreetDeck Electroliner double-decks and 28 being Wright GB Kite Electroliner single-decks, were delivered in May 2023,[16] with the fleet rolled out onto city services to replace existing diesel buses from August onwards, enabling the Foyle Metro fleet to be completely zero-emission.

[21] In December 2015, a single-decker bus crashed into Strangford Lough after colliding with a wall on the Portaferry Road near Newtownards.

The attack was widely condemned by members of the Northern Ireland Assembly and all buses to the town were briefly suspended.

[25][26] A double-decker Urby school bus carrying 43 pupils from Strangford College overturned in a field near Carrowdore on 7 October 2024 after colliding with a post.

Many of these would be hijacked and maliciously destroyed throughout The Troubles, and as such, second-hand Bristol, Leyland and AEC buses were regularly purchased from British operators.

[32][33] In 2001, however, double decker buses were reintroduced to Northern Ireland through the purchase of 20 low-floor Volvo B7TLs with Alexander ALX400 bodywork for both Ulsterbus and Citybus.