Video - President Buhari left for medical tests in London Sunday night

President Buhari left Nigeria on Sunday night to seek treatment in London. According to his office, Buhari will be going for follow up medical tests. Buhari returned to Nigeria two months ago after receiving medical treatment in Britain. Officials have refused to disclose details of his medical condition. Buhari's health has been a major cause of concern in a country where there are fears that a power vacuum could affect its recovery from recession.