CAMERON HIGHLANDS - Security forces have tightened their grip on four districts here to rid the land of illegal immigrants.
Since Saturday, there has been visible presence of police and military personnel in several areas.
Roadblocks manned by General Operations Force (GOF) officers have been set up on all the four main roads leading in and out of the highlands.
Most cars were waved off after a quick scan but lorries underwent a more thorough search.
An officer at one of these roadblocks said the joint military and police operation began at about 2pm on Saturday.
Some of the foreigners were also seen trying to evade detection.
In one incident witnessed by The Star, a foreigner stopped just 50m away from a roadblock and kept himself out of line of sight by creeping along a bend in the road.
He was seen walking into some bushes and disappearing into a forested area.
Several military transport trucks were spotted in Brinchang and near Tanah Rata over the weekend, carrying armed soldiers to base camps, operation sites and the police stations.
For the most part however, the security forces have kept away from population centres.
The migrant workers appeared to be on the edge with the presence of the security forces.
During a visit to the nearly empty Tringkap night market on Friday, a small number of migrant workers were seen hurriedly buying supplies.
They seemed to be fearful and looked suspiciously at locals and over the weekend only a few migrant workers were seen in towns.