Unidentified assailants have beaten a Canadian man at a park in central Istanbul.Sjoerd Vaandering, a 72-year-old British Columbia resident, was walking in the Maçka Park early Nov. 29 when he was assaulted, Doğan News Agency reported. Vaandering was found by passersby with his belongings scattered on the pavement.As the injured victim was hospitalized with an ambulance, the police initiated an investigation to find out the identities and the motive of the assailants.The Maçka Park, as well as the whole neighborhood of Harbiye, is generally known as a safe place.