Video obtained by Reuters shows an explosion that took place during the night in the city. The US military has fired another wave of missile strikes against Houthi-controlled sites, marking the fourth time in a week it has directly targeted the group in Yemen. The strikes were launched from the Red Sea, hitting more than a dozen sites, the officials told the AP news agency, and came after a drone launched from Houthi-controlled areas hit a US-owned vessel in the Gulf of Aden Red Sea crisis: US launches fourth round of strikes on Houthis in Yemen Middle east crisis: latest updates