Morning, everybody. In the last hour, the United States has announced that it is temporarily

closing its embassy in Kiev today and instructing employees to shelter in place. That's after

receiving what it describes as specific information of a potentially significant air attack. Overnight,

Ukraine's military says Kiev's air defence units were deployed in defence of the city.

Witnesses told Reuters news agency they heard multiple blasts. Meanwhile, President Biden

has said that the U.S. will provide Ukraine with anti-personnel mines in the hope they

will slow down Russian advances in the east of the country. U.S. officials say that Ukraine

has promised not to use the mines in densely populated areas. It follows claims from Russian

officials that Ukraine has fired U.S.-made long-range missiles into their territory just

days after President Biden gave them permission.