Mexican court authorities have suspended two judges while investigators look into possible irregularities.

The Federal Judiciary Council says it is temporarily suspending appellate Judge Jesus Guadalupe Luna and district Judge Efrain Cazares.

It did not describe the allegations being investigated.

But Luna acquitted the son of Sinaloa drug cartel chief Joaquin Guzman of money laundering. And he also upheld a lower court ruling that cleared Sandra Avila Beltran of organized-crime charges despite efforts by Mexico and the U.S. to prosecute the woman nicknamed "Queen of the Pacific."

Federal authorities say Cazares ignored credible evidence when he released some of mayors detained in a mass arrest of officials in the western state of Michoacan in 2009

The council said in a Friday statement that a separate agency is conducting the investigation.

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