A Russian court has frozen the assets of prominent US investor Michael Calvey, who was detained in a controversial fraud case this year and remains under house arrest, the Interfax agency reported recently.

Calvey’s lawyer Dmitry Kletochkin told the agency that “all of his property in Russia” had been “seized”, adding that he planned to appeal.

The assets of three of Calvey’s colleagues who are being investigated in the same case were also seized, the agency reported.