Police on Monday said they had arrested another six men in connection with a shooting and machete attack in Central earlier this month, taking the total number to 16.
Officers said they believe a gang were attacked by rivals near Lan Kwai Fong on June 10, in connection with a dispute over drugs. Police earlier said that three people were injured in the incident.
The newly arrested suspects are aged between 22 and 43.
Senior superintendent Ho Chun-tung from the organised crime and triad bureau said officers are still looking for the gun used in the incident.
"Unfortunately, the gun involved in the shooting incident we haven't found it yet. But we are working on some leads and we are trying very hard to find the gun," he said.
Eight people have been charged over the case, accused of wounding and possessing weapons.