PETALING JAYA - They were found crouched in concealed rooms, secret compartments in ceilings, behind walls and even under floorboards.
But they did not remain hidden for long and were among the more than 1,000 illegal immigrants nabbed in the nation's biggest ever operation to flush out unwanted foreigners.
The operation, code named Ops 6P Bersepadu began at midnight on Saturday.
It was conducted by enforcement personnel from the Immigration Department, police, Armed Forces, Rela, Civil Defence, National Registration Department and local councils.
The weapons seized during the crackdown included a samurai sword, hammers and parang.
The enforcement officers also uncovered a secret passage in an entertainment outlet in Melaka Raya, Malacca, used as an escape route.
Immigration Department deputy director (Enforcement) M. Saravana Kumar said the illegals tried to elude capture by hiding in "special compartments" created in buildings.
"We found secret rooms built behind walls, between ceilings and roofs and also under the floors of the makeshift squatter homes.
"As for pubs, discos and massage parlours, many had hidden passages for illegals to flee from raids," he said.