A police officer has been injured in a crossbow attack outside the Israeli embassy in the Serbian capital, Belgrade.Interior Minister Ivica Dacic told reporters that the officer had subsequently shot and killed the assailant.The attacker – who authorities have said was Serbian – had hit the policeman in the neck with an arrow, Mr Dacic said. The officer has had surgery, and is no longer in a serious condition, authorities say. Serbian broadcaster B92 quoted Mr Dacic as saying the attacker had approached a small building at the front of the Israeli embassy around 11:00 (09:00 GMT),…