The boys, 15 and 16, were walking through the park on Saturday at about 9.25pm when they were approached by two older teenagers.The younger victim was struck on the head with a plastic bottle, while a mobile phone was taken from his friend.A racist remark was made by one of the attackers.The first assailant is described as aged around 18 years old with dark hair. He was wearing a dark coloured t-shirt and three quarter length blue jeans. The second teen is also described as aged around 18 years old with dark hair. He was wearing a Manchester United football top and grey shorts. He is understood to have had a scar on the right hand side of his face.Police are treating the incident as a hate crime and want anyone with information that could assist the investigation to call them on the non-emergency number 101.Meanwhile, a 47-year-old man has been charged with disorderly behaviour by police investigating a hate crime incident in Belfast city centre.It happened on Monday afternoon in the Castle Lane area.He is due to appear at Belfast Magistrates' Court on Monday 30 June.