Police Chief Inspector Ariel Huesca, Region IX police spokesman, identified the MNLF commander as Salip Idjal.
He told INQUIRER.net in a phone interview that the eight Moro rebels were now in the custody of the Zamboanga city police.
As of Tuesday afternoon, Huesca said a total of 32 MNLF gunmen had surrendered.
Zamboanga City government, confirmed in a post on Twitter the surrender, which happened at around 8 a.m. on Martha Drive in Barangay Santa Catalina, in Zamboanga City.
He said clearing operations by the government troops were ongoing.
No further details were given as of posting time.
Originally posted at 3:30 p.m.