According to the agency, Quan arrivedin Vietnam on April 17 at Tan Son Nhat International Airport on a USpassport under the name of Richard Nguyen.
Investigators say that Quan, born 1953, from Elk Grove in the state ofCalifornia, US, was planning to hold demonstrations and carry outterrorist activities in Vietnam, on the anniversary of the liberationof southern Vietnam and national reunification day on April 30 and MayDay, at the instruction of the overseas terrorist organisation VietTan .
The police subsequently arrested Quan for organising terrorist acts.
They said Quan admitted his involvement in criminal activities and isbeing held in custody for four months for further investigation.-VNA