The British foreign office said Thursday it was concerned about the deaths of two Palestinian teenagers and the Israeli military\'s allegations that Palestinians attacked a post with firebombs.\"We are deeply concerned about the deaths of two Palestinian teenagers in the West Bank and reports of the Israeli military being attacked with firebombs,\" a UK spokesman said in a statement.\"It is a tragedy when any young person’s life is cut short. We urge the parties to take steps towards de-escalation and to exercise restraint. We expect a full investigation into the incident.\"