Turkish President Tayyip Erdogan said on Tuesday the country's main opposition party was attempting to obstruct a major corruption investigation targeting Istanbul's jailed mayor, Ekrem Imamoglu.

Istanbul's public prosecutor's office has launched an investigation into recent opposition calls for a boycott of pro-government businesses following the arrest of the city's mayor.

The head of Turkey’s main opposition party visited jailed Istanbul Mayor Ekrem Imamoglu on Tuesday after six nights of massive protests calling for his release. Imamoglu, arrested on March 19 on corruption charges,