Police last night found another two of the five detainees who escaped from an immigration detention centre in Northam four days ago.
They were closing in on the fifth escapee last night.
Earlier in the day, they found two of the detainees, who escaped from Yongah Hill Detention Centre on Saturday night, in bush 20km west of Northam near Bakers Hill.
Officers on motorbikes and in four-wheel-drives - aided by the police dog squad and a police helicopter - spent the afternoon searching for the men near the Kep Track after the first two detainees were found about 2.15pm.
Police swooped on a patch of bush after The West Australian photographer Ben Crabtree reported seeing three people running across Great Eastern Highway.
Shorlty after, a nearby resident is understood to have reported hearing movement outside her property.
The two men were captured by police about 9.15pm.
The West Australian understands that, earlier in the day, a motorist spotted the Vietnamese fugitives about 11.20am near the intersection of the Great Eastern Highway and Chitty Road.
They asked him for water. He said he would go and get them some but when he returned they had fled. The men were apparently trying to hitch a ride to Perth.
They were taken to Northam police station and later transferred to the Perth Immigration Detention Centre, a Department of Immigration and Citizenship spokeswoman said.
The police air wing is believed to have been used to find the escapees.
"The whole thing is very bizarre, obviously they have no plan," a local resident, who asked not to be named, said.
Some residents were furious police resources were used for the search.
The detainees are understood to have approached residents offering to work for food and water since their escape.