SEOUL-- All North Korean ships, which underwent safety inspections at ports in the Asia-Pacific region this year, were found to have deficiencies, a U.S. broadcaster said Tuesday.

A total of 230 North Korean ships were inspected between Jan. 1-Nov. 27, and they all had defects, Voice of America said, citing data from the Port State Control (PSC).

Of them, 27 vessels, including the ferry Mangyongbong, which provides a regular service on the route between its eastern port of Rajin and Russia's Vladivostok, were detained after inspections.

All the 287 North Korean ships, which received PSC safety checks during the same period last year, also had defects, with 24 of them ordered to stop their operations.

In 2015, only one of 294 ships passed a PSC inspection.

Such a high deficiency rate of North Korean vessels is ascribable to their deterioration, the broadcaster said.

Source: Yonhap News Agency