Soldiers from the United States (US) military mission in Cameroon donated school supplies in cooperation with the Spirit of American charity. The US Ambassador to the United Nations (UN) Samantha Power’s convoy struck and killed a young boy who ran in front of an armoured jeep. Nigeria and Cameroon signed a number of security and economic agreements during high level diplomatic meetings early in April. Cameroon has stepped up maritime patrols and boarded 22 foreign ships within its waters. The International Monetary Fund (IMF) estimates that the conflict with Boko Haram has resulted in a cost of $295 to $590 million to the Cameroonian government. In economic affairs, officials with the Ministry of Forestry and Livestock incinerated an illegal cargo of 2,000 elephant tusks coming from endangered elephants. The Managing Director of the World Bank Group arrived in Cameroon in late April to discuss previous World Bank projects as well as identify new areas for cooperation. The Bowleven oil and gas company received an extension on its oil exploration block in the Douala basin. Tianyuan Construction Group received approval for the development of the Ngoye Beach area in the seaside resort town of Kiribi. ZTE telecommunications is establishing a presence in Cameroon with a start up capital of $850,000.