The victim of a suicide attack in Kabul had been living with his fiancee in County Londonderry, Northern Ireland.
Mr Chase's fiancee Norma McDowell was being comforted by family and friends after learning of the news.
It is understood the couple lived together with two children in the Drumachose Park area of the town.
The ex-Cheshire Regiment soldier had worked as a nightclub doorman in Limavady before travelling to Kabul to work in the security industry.
More top news
Labour have held onto the crucial seat of Stoke-on-Trent, brushing aside UKIP leader Paul Nuttall in the process.
A highly toxic chemical was used in the death of North Korean leader Kim Jong-un's half brother last week, tests have shown.
A new survey has highlighted the disconnect between people's views on the GB Olympic team and funding for grassroots sport.