Bitcoin exchange BTE-C has reported via its official Twitter account that it is, at this time, experiencing a DDOS (distributed denial of service) attack that may or may not be affecting all services.
The uncertainty comes from the lack of explanation from BTC-E. The tweet, which only reads “DDos #btce” (pictured above), seemingly speaks for itself, however.
Bitcoin exchanges are often targets of DDOS attacks, but many have learned to deal with these situations as a result of being victims multiple times (see Mt.Gox).
More updates as they become available.