Vietnamese Prime Minister Phan Van Khai has decided to implement a partial waiver on entry-visa requirements for Japanese passport holders, the Foreign Ministry announced Thursday.

Related agencies will soon draw up detailed measures and a time frame for implementing the move, a ministry spokesman said.

While no reason was given for the decision, Vietnam saw a drop in the number of foreign tourists in the first six months of the year, primarily due to the outbreak of severe acute respiratory syndrome.

Last year, 279,769 Japanese visited Vietnam.