The King has planted a tree with a 10-year-old environmental campaigner while on a visit to Karura Forest in Nairobi.

Karen Kimani - who has already planted more than 10,000 trees - wrote to Buckingham Palace earlier this year asking if the royal would accompany her.

While on a 700m walk through the urban forest, the royal also met Nobel Peace Prize winner Professor Wangari Maathai's daughter Wanjira, and Kenyan marathon runner Eliud Kipchoge. Report by Alibhaiz. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn