2 Americans confirmed dead in Brussels attacks; Kerry visits

At least two Americans have been confirmed killed in the Brussels attacks, a US official said Friday, as Secretary of State John Kerry visited the stricken city to express condolences and defended Belgium's counter-terrorism efforts against "carping" by critics.

Speaking after meeting Belgian Prime Minister Charles Michel, Kerry said the "United States is praying and grieving with you for the loved ones of those cruelly taken from us, including Americans, and for the many who were injured in these despicable attacks."