The Pirate Bay and several other torrent websites temporarily disappeared from the internet on Tuesday. Reports say the sites were downed in a raid by Swedish police, which seized servers, computers, and equipment of previously elusive web pirates.

The Pirate Bay site appeared back online late on Tuesday, changing its web domain to .cr (Costa Rica). Prior to that, however, it was reportedly unavailable for hours.

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

Worst day of my life. #RIPPirateBay — Yash Khatri (@Yash_17) 10 декабря 2014

Other details are being kept under wraps, including the location of the operation and exact targets.

The operation took place in the morning and lasted into the afternoon, expert file-sharing case prosecutor Fredrik Ingblad told Radio Sweden (SR).

“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 said.

Today is a sad day... A moment of silence for the death of the Pirate Bay... #PirateBay#PirateBayDown — Sephirex (@Sephirex) 9 декабря 2014

There are reports of at least one man being detained in connection to the case, according to TorrentFreak.

Swedish Metro reported that Ingblad initiated the police effort.

Other sites reportedly downed by the raid include EZTV, Zoink, Torrage, and the Istole tracker.

The Pirate Bay’s forums were also offline, including Suprbay.org, Bayimg.com, and Pastebay.net.

Taking down The Pirate Bay will only lead to more trackers. Have police and governments learned nothing about the culture of the Internet? — Amy Miranda (@AmyMiranda) 10 декабря 2014

In November, police arrested the third and final co-founder of The Pirate Bay, Hans Fredrik Lennart Neij, who spent four years on the run from authorities.

The 36-year-old Swede, known in hacking communities as 'TiAMO,' was on his way to Thailand with his Laotian wife when he was detained at a border checkpoint in Nong Khai under a warrant issued by Interpol.

READ MORE: Last of Pirate Bay founders arrested on Laos-Thailand border

Earlier in September, The Pirate Bay announced new cloud technology which made its servers “raid proof,” adding that the 21 “virtual machines” (VMs) were scattered around the globe with cloud-hosting providers.

The cloud technology reportedly made the site more portable and made the torrent harder to take down.

READ MORE: Pirate Bay fools the system with cloud technology