WASHINGTON (AP) - Kenya's foreign minister says "two or three Americans" and "one Brit" were among those who attacked a Nairobi shopping mall.
More than 60 people have been killed in the assault on the upscale mall, which has lasted for three days.
The foreign minister, Amina Mohamed, said in an interview with PBS' "NewsHour" program that the Americans were 18 to 19 years old, of Somali or Arab origin and lived "in Minnesota and one other place" in the US.
U.S. officials said they were looking into whether any Americans were involved. State Department spokeswoman Jen Psaki (SAH-kee) said Monday the department had "no definitive evidence of the nationalities or the identities" of the attackers.
Authorities in Kenya are trying to wrap up their standoff with al-Shabab, a group allied with al-Qaida.