LONDON, Jan 25 (Reuters) - Britain said on Thursday it had sanctioned four people under its Yemen sanctions regime over Houthi attacks in the Red Sea.

Those targeted included Houthi Defence Minister Mohamed Nasser al-Atifi and Commander of Houthi Naval Forces Muhammad Fadl Abd Al-Nabi, according to government documents.

British Prime Minister Rishi Sunak said

on Monday

that the government would announce new sanctions this week targeting Houthi financing of attacks on shipping in the Red Sea. (Reporting by Muvija M, Writing by Kylie MacLellan; editing by William James and Sarah Young)