A Mexico City judge has temporarily frozen the assets of funds run by Advent International Corp as part of an investigation into fraud allegations over the sale of a Mexican funeral service provider.

Banca Mifel, a small Mexican bank that is among the bidders, was among the companies whose shares and assets the judge froze. A pension fund and a chemical maker are also included.

The embargo can be extended by the judge according to the document. Arrest warrants were issued the same day that the embargo on Somar assets was put in place.

Advent wouldn't say anything about the order. Mexico City's prosecutors' office doesn't comment on investigations

The daily operations of the companies are unaffected.

Gayosso was bought from other funds run by the private equity firm last year. According to judicial documents, Advent hid debt, mostly related to pre- sold funeral packages.

Arrest warrants have been issued for Advent executives in Mexico in a fraud investigation.

Arrest warrants for six people, including current and former Advent executives, were issued last month.

The criminal proceedings were not merited and an attempt was made to add pressure on the civil lawsuit. A representative of Advent in Mexico said previously that the company had engaged in 15 months of talks, including a complete process of due diligence, where it had complete access to company executives and records.

According to public records, Carlos Paz, an Advent executive in Mexico, filed an injunction to block the arrest warrant. The judge who ordered the arrest warrant has asked for a hearing.

The person didn't reply to the emails.

(Updates with related order in third paragraph)