Portuguese authorities have reportedly conducted a raid on Benfica's facilities as part of a corruption probe into several club officials in charge of the reigning Primeira Liga champions.

The Associated Press (h/t Washington Post) reported on Tuesday that the raid had taken place and that Benfica legal adviser Paulo Goncalves was detained under accusations of obstruction of justice.

Benfica president Luis Filipe Vieira was named a formal suspect in the investigation in January, per Reuters, as AP detailed the corruption allegations regard officials being granted illegal access to judicial documents.

Metro's Portuguese football expert, Jan Hagen, provided further context surrounding the allegations of corruption, which in turn are said to relate to matters involving other clubs:

Benfica have won the Primeira Liga crown for the last four seasons in succession and are five points below leaders Porto as they look to make it five in a row this term.

Vieira has maintained his innocence despite the accusations surrounding the club and numerous officials, and Hagen provided quotes from the president in February:

Reuters explained Vieira and Goncalves were two of 12 suspects, with vice president Fernando Tavares and a "high-ranking judge" also among that number.