US: No verification that Americans involved in Kenya attack

US Attorney General Eric Holder said on Wednesday there had been no verification that Americans were involved in a deadly attack at a shopping mall in Nairobi, Kenya.

Some US news reports have said a small number of Americans or US residents might have been among those involved in a weekend assault that killed dozens at Nairobi's Westgate mall. Holder, speaking at an unrelated press conference, said US officials still are working with Kenyan officials to investigate the attack. (Reuters)