The number of non-Japanese who were deported in 2015 for violating the immigration control law rose 14.9 percent from the previous year to 12,272, marking the first rise in a decade, the Justice Ministry said Tuesday.
The number of overstayers increased as a result of the acceptance of more vocational trainees and visa-free travelers, the ministry said.
The total included 7,973 illegal workers. Of those, 1,622 were working in the construction industry and 1,113 in the farming sector.
By nationality, 4,311 deportees were from mainland China, the largest group, followed by 1,643 from Vietnam, 1,475 from Thailand and 1,467 from the Philippines, the ministry said.