FRANKFURT, Nov 24 (Reuters) - Signa Real Estate Management Germany filed an official application for bankruptcy at the Berlin Charlottenburg district court, German magazine Spiegel reported on Friday, as the crisis at Rene Benko's property group deepens. Separately, Austrian newspaper Der Standard said a bankruptcy filing for Signa Group could come next Tuesday, citing a source. Meetings of Signa employees are planned for the same day, when employees will be given information about the insolvency and further steps, the paper reported. Signa Group declined to comment when contacted by Reuters. The Signa group has holdings of 27 billion euros ($28.8 billion) and 25 billion euros in development.

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Persons: Spiegel, Rene Benko's, Benko, Signa, Emma, Victoria Farr, Matthias Inverardi, John O'Donnell, Elisa Martinuzzi, Louise Heavens Organizations: Estate Management, Signa, Reuters, Thomson Locations: FRANKFURT, Estate Management Germany, Berlin Charlottenburg, Austria, Germany, Europe's