Britain investigating reports its cluster bombs used in Yemen

Britain's Foreign Secretary Philip Hammond arrives at 10 Downing Street in London, Britain May 5, 2016. REUTERS/Paul Hackett

LONDON (Reuters) - Britain is investigating reports that cluster munitions made in the country during the 1970s have been used by a Saudi-led coalition during the ongoing conflict in Yemen, Foreign Secretary Philip Hammond told parliament on Tuesday.

Saudi Arabia and its Gulf Arab allies began a military campaign in Yemen in March last year with the aim of preventing Iran-allied Houthi rebels and forces loyal to Yemen's ex-president, Ali Abdullah Saleh, taking control of the country.