The brother of Senegal President Macky Sall has resigned from a top government position, following a BBC investigation into a suspicious oil deal. Alio Sall headed a body linked to the national treasury. In a statement, he said the allegations were part of a campaign to "dehumanize" him and make him "public enemy number one". The BBC's ndings have dominated headlines in Senegal since they were published in early June. There have been protests in the streets of the Senegalese capital, Dakar, and an investigation has been launched by the Ministry of Justice. In 2012, Romanian-Austrian businessman Frank Timis was given oil and gas exploration rights o the Senegalese coast. The nal go-ahead came from President Sall. But the deal looks suspicious, because Aliou Sall was working for Mr Timis.Documents obtained by the BBC show Aliou Sall was paid 1,5million dollars. Aliou Sall says he was hired for his expertise, and that his salary was in line with others in the business.