On 19 March 2010, Swedish third tier side IFK Värnamo (coached by the former Sweden midfielder Jonas Thern) announced they had signed Bangura on loan for the forthcoming season.

Örebro SK, at the time one of the top Allsvenskan teams, were also interested but decided to pass due to Bangura being injured.

On 24 July 2010, Bangura made his Allsvenskan debut for AIK against Malmö FF away by coming in as a substitute in the 74th minute.

[5] On 28 July, Bangura was in the starting eleven in AIK's next fixture, the UEFA Champions League qualifier at home against Rosenborg BK.

[14] He endured a nightmare start at Celtic after failing to hit a single first-team goal and falling out of favour as manager Neil Lennon preferred strikers Gary Hooper, Anthony Stokes and Georgios Samaras in the first team.

[18] After the move, Bangura said returning to the club could hopefully revive his deadly reputation and he believed going back to Sweden would be a good boost for his career.

[22] At Elfsborg, Bangura started to improve his goalscoring form, unlike his time at AIK, including a brace in a 6–0 win over Brommapojkarna on 23 May 2013.

In response, Manager Bo Johansson, on the other hand, disagrees with Lennon and described his comments "unacceptable and scandalous" and will let him play in both legs.

On 3 February 2014, Bangura joined Turkish second-tier league side İstanbul BB on a two-and-a-half-year deal.

[30] He made 10 appearances in the league, scoring once,[31] before leaving at the end of the year following the club's promotion to the top tier.

[32] Bangura made his international debut on 5 September 2010, in a 2012 Africa Cup of Nations qualification match against Egypt which ended in a 1–1 draw.