Barcelona is facing corruption charges in connection with payments made to Jose Maria Enriquez Negreira, a former vice-president of the committee, in exchange for favorable refereeing decisions.

Uefa is also looking into the case.

Barcelona has denied any involvement, and no arrests were made during the Madrid search.

On Thursday, the Spanish Civil Guard raided the headquarters of the Spanish Technical Committee of Referees (CTA).

According to BBC Sport, the judge hearing over the case has requested documentation from the CTA. This was not sent, prompting the raid.

The Barcelona public prosecutor’s office launched the initial criminal probe in March, with European football’s governing body Uefa following suit shortly after.

Barcelona allegedly paid Negreira and his Dasnil 95 company 8.4 million euros (£7.4 million).

The payments were initially probed as part of a tax investigation into Negreira’s company.

Barcelona paid the firm 1.4 million euros (£1.2 million) between 2016 and 2018, and Negreira roughly 7 million euros (£6.2 million) between 2001 and 2018, the year he left the referees’ committee.

Barcelona admitted paying Dasnil 95, which it characterized as a “external technical consultant,” to create video reports on referees “to supplement the information required by the coaching staff.”

They claimed that paying for reports was “a common practice among professional clubs.”

In February, 18 of La Liga’s 19 other clubs published a statement expressing “deep concern.”

While its inquiry is ongoing, Uefa provisionally cleared Barcelona to compete in the Champions League this season in July.