Ukrainian hackers promise leaks on Putin spokesman

KIEV (Reuters) - Ukrainian hackers behind recent Kremlin email leaks said on Thursday they planned to release more information taken from accounts linked to senior Russian officials, including to President Vladimir Putin's chief spokesman.

A network of Ukrainian hacking groups, called the Cyber Alliance, has been releasing emails they say were sent to one of Putin's top advisers - a bid to disprove Russia's denial it has stoked separatism in eastern Ukraine and played a direct role in the 2-1/2-year-old conflict there.