The acting defense secretary abruptly reversed his previous order to redeploy the Nimitz, which he had done over the objections of his top military advisers.

Boris Johnson warns of more pain to come.

Should second doses be delayed? Should most adults receive half-doses? Scientists are pondering ways to get more shots into more arms.

The president-elect also plans to pursue a “follow-on negotiation” with Iran over its missile capabilities if Tehran re-enters compliance with the nuclear deal.

Gunmen were described as having singled out men and boys in two villages in a region under siege by militants.

"What’s happening in L.A. can and will be coming in many communities in America," the mayor warned.

India greenlights two coronavirus vaccines.

India’s pharmaceutical regulator announced the approval for emergency use of two Covid-19 vaccines, the Oxford-AstraZeneca vaccine and another developed by Bharat Biotech in India.

The pope delivered his weekly address from a Vatican library, because the plaza he usually speaks to has been closed to the public.