A ship reported spotting a small boat under fire in waters off western Yemen, prompting the United Kingdom Maritime Trade Operations (UKMTO) to issue warning 043-25 during the period from 5:46 a.m. to 7:15 a.m. UTC on December 5, 2025, according to an official UKMTO post on X. Sky News Arabia reported that the British Maritime Authority received the ship's account of the incident in western Yemen, shared via X during the same timeframe. The warning highlights ongoing maritime security concerns in the region. UKMTO's advisory, accessible via its warnings page for 2025, urges heightened vigilance amid #MaritimeSecurity and #MarSec risks, as stated in the X post by @UK_MTO.