KUALA LUMPUR (THE STAR/ASIA NEWS NETWORK) - Police have raided six nightclubs in Bukit Bintang as the hunt for "Ah Hai", the suspected target in Thursday's grenade attack at Sun Complex, continues.

But the 53-year-old gang leader has yet to be found. Kuala Lumpur police chief Tajuddin Md Isa said on Sunday: "Ah Hai has yet to come out and assist us."

City CID chief Senior Asst Comm Gan Kong Meng said the raids on six outlets were conducted between 11pm on Saturday and 5am on Sunday.

"We raided three outlets and checked a total of 405 people and arrested two people for allowing underaged individuals into an entertainment outlet and opening an entertainment outlet past the stipulated closing time.

"Bukit Aman personnel including a Special Task Force On Organised Crime (STAFOC) team raided three other outlets and checked 215 people and rescued three Vietnamese women under the Anti-Trafficking in Persons and Anti-Smuggling of Migrants Act.

"The three are believed to have been exploited for sex," he said when contacted, Sunday.

The blast outside the Cherry Blossom nightclub on Thursday killed a car jockey and injured 12 others, including two China nationals, two Singaporeans and a Thai.

Tiong Kwong Yie, 36, succumbed to serious injuries hours after the blast at 4.25am.

Police are currently looking for "Ah Hai", the Godfather of Gang 21 who is believed to have been the target of the grenade attack.