South Korean authorities have detained a cargo ship over suspected violations of U.N. sanctions on North Korea, Seoul’s foreign ministry announced on Wednesday, months after the bust.

The 10,730-ton Prada, formerly known as the Sophia, was detained after entering the South Korean port of Pyeongtaek in March, an ROK Foreign Ministry spokesperson told NK News.

Seoul acted on “information indicating that it had previously been involved in activities violating U.N. Security Council sanctions resolutions on North Korea,” according to the spokesperson.

A joint investigation by relevant government agencies confirmed the suspicions, the spokesperson said, and the vessel remains in