From WENN.com

The Avengers star travelled to Guinea this week (beg21Jan13) to visit communities which have been given a boost by the organisation.

Hiddleston met with youngsters at a school in the capital city of Conakry, and he took to his Twitter.com page to upload a photograph of his visit.

In an accompanying post, he writes, ""Children at Tinafan, a UNICEF-supported school for the circus arts in Conakry, who put on an incredible show.""

The actor has promised to document his whole trip in posts on Twitter.