Latest from Charlotte and Tulsa

A curfew has been imposed in the US city of Charlotte, as protests over the police shooting of a black man continued for a third night.

The Syrian army has announced a new offensive against rebels in Aleppo -- and diplomatic efforts to revive a truce have broken up in acrimony.

The internet giant Yahoo is under pressure to explain why it took so long to detect that hackers had stolen information from half a billion users.