The First Precinct of Keelung City Police Bureau, Taiwan. Photo: Google Maps

A Vietnamese migrant who appeared nervous during the early hours of Monday in the streets of Keelung, Taiwan, was intercepted by patrol officers and later arrested for possession of illicit substances as well as lacking a work permit.

At 1am, police officers encountered the man during a regular patrol along Chenggongyi Road, China Daily News reported.

He appeared paranoid and nervous, prompting officers to check his credentials. He was identified as an illegal immigrant who lacked a valid work permit because he had run away from his former employer.

Two packets of amphetamine, a plastic bag with residue of amphetamine and an inhaler for the drug were allegedly recovered from the suspect during a body search.

He was thus detained for further investigation for possession of illicit substances.