An investigation suggests a U.S.-operated Patriot missile may have been involved in a recent blast in Bahrain, which injured 32 people, including children. Both Bahrain and the US blame an Iranian drone attack, but the US is re-examining its military operations in the region.

Both Bahrain and Washington have blamed an Iranian drone attack for the March 9 blast, which the Gulf kingdom said injured 32 people including children, some seriously