The memorial wall that was targeted is a tribute to protesters killed in Iran and those killed during the 7 October Hamas attack For free real time breaking news alerts sent straight to your inbox sign up to our breaking news emails Sign up to our free breaking news emails Sign up to our free breaking news emails Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice A man and a woman have been arrested on suspicion of arson