The Greek-flagged crude oil tanker Sounion that was recently attacked by Yemen’s Houthis is still on fire in the Red Sea and now appears to be leaking oil, a Pentagon spokesman said on Tuesday.

Ryder condemned the attack, labeling it a “reckless act of terrorism” that endangers global commerce, the lives of civilian mariners, and the maritime environment in the Red Sea and Gulf of Aden. The US military is collaborating with regional partners to assess how best to assist the stricken vessel and mitigate potential environmental damage.