Police in Sweden carried out a raid in Stockholm today, seizing servers, computers, and other equipment. At the same time The Pirate Bay and several other torrent-related sites disappeared offline. Although no official statement has been made, TF sources confirm action against TPB.

For many years The Pirate Bay has been sailing by the seat of its pants so any downtime is met with concern from its millions of users.

This morning, for the first time in months, The Pirate Bay disappeared offline. A number of concerned users emailed TF for information but at that point technical issues seemed the most likely culprit.

However, over in Sweden authorities have just confirmed that local police carried out a raid in Stockholm this morning as part of an operation to protect intellectual property.

“There has been a crackdown on a server room in Greater Stockholm. This is in connection with violations of copyright law,” read a statement from Paul Pintér, police national coordinator for IP enforcement.

Police are staying quiet on the exact location of the operation and the targets involved but the fact that the national police IP chief is involved at this early stage suggests something sizable.

In addition, expert file-sharing case prosecutor Fredrik Ingblad has commented on the raid, further adding weight to the incident.

“There were a number of police officers and digital forensics experts there. This took place during the morning and continued until this afternoon. Several servers and computers were seized, but I cannot say exactly how many,” Ingblad told SR.

Ingblad would not be drawn on any arrests during the operation but TorrentFreak has learned that police may have detained at least one man connected to the site.

While it seems certain that The Pirate Bay has been targeted today, it was not the only casualty. Several other torrent related sites including EZTV, Zoink, Torrage and the Istole tracker are also down.

Update: The Pirate Bay’s forum Suprbay.org is also offline. The same goes for Bayimg.com and Pastebay.net.

Update: According to the police the raid targeted a data center in Nacka which is built into a “mountain.”

Update: No, the Pirate Bay is not back yet.

Breaking news story, more as we have it.