The target of the attack was the bus driver, who was also a part-time soldier in the Army’s Ulster Defence Regiment (UDR).
Arlene Kelly was not hurt in the explosion, but a schoolgirl sitting next to her was seriously injured.
When she left grammar school in Enniskillen, the future Mrs Foster became the first member of her family to go to university, studying law at Queen’s University, Belfast.
She became politically active at university, joining the Ulster Unionist Party (UUP) and chairing Queen’s Ulster Unionist Association.
She qualified as a solicitor and began working in private practice in Enniskillen and Portadown, County Armagh.
On 24 August 1995, aged 25, she married Brian Foster, and the couple went on to have three children.