Two men who were leaving a local nightclub early yesterday near Ala Moana were assaulted. Police say the victims, both 28, were leaving the club at 4:13 a.m. when a 23-year-old man approached them and assaulted one of them. When the other man tried to help, the suspect assaulted him, too. They were taken to a hospital for treatment of their injuries. Police arrested the suspect on two counts of suspicion of second-degree assault.