After a string of claimed but unconfirmed attacks on various vessels lately, Yemen’s Houthi rebels actually hit two ships in the Gulf of Aden over the weekend.

The vessels are managed by MSC Mediterranean Shipping Co and Germany’s Reederei Lauterjung.

United Kingdom Maritime Trade Operations (UKMTO) was the first authority to report the two separate incidents, in which “unknown projectiles” impacted the 5,700-dwt multipurpose vessel Norderney (built 2012) and the 5,900-teu container ship MSC Tavvishi (built 2000).