AMSTERDAM (ANP) – The monument to Theo van Gogh in the Oosterpark in Amsterdam was vandalised last week. ‘Al Qaeda’ was written on the statue in black letters, the police said on Saturday. The date ’27-11-2007′ was also written on the monument in black marker. It is still unknown who is responsible for the deed. The statue De Schreeuw (The Screen) is on the edge of the Oosterpark, close to where Van Gogh was murdered by an Islamic fundamentalist on 2 November 2004. The monument was unveiled in March this year.