A ship with very close ties to North Korea is currently making its way to Casablanca in Morocco, after docking at the Spanish port of Las Palmas in the Canary Islands, the NK News vessel tracker shows.

Though not illegal, it’s very unusual to see suspected North Korean vessels in European waters, or even broadcasting their positions along the North African coast. The last vessel to do so was the Morning Glory, which illegally bought a shipment of oil from rebels in Libya, before being commandeered by U.S. military.