BGP Incident:
Summary:Rerouting of UK traffic through Ukraine (167 prefixes)
Start:2015-03-07 02:37:00

(mentioned on nanog 2015/03/14) Beginning on Saturday, Ukrainian telecom provider, Vega, began announcing 14 British Telecom (BT) routes, resulting in the redirection of Internet traffic through Ukraine for a handful of British Telecom customers. Early yesterday morning, Vega announced another 167 BT prefixes for 1.5 hours resulting in the rerouting of additional traffic destined for some of BT’s customers, including the UK’s Atomic Weapons Establishment, the “organization responsible for the design, manufacture and support of warheads for the United Kingdom’s nuclear deterrent.”

Affected ASes
Discussed in a washington post article