"We have suspended the activities of the company for three months," Kazakh Environmental Protection Minister Nurlan Iskakov said in Astana.
The comments were reported by Interfax-Kazakhstan.
Iskakov accused Agip Kazakhstan North Caspian Operating Co., the sole operator of the North Caspian Sea Production Sharing Agreement, of failing to observe environmental protection requirements.
Agip is owned by Eni.
"I think that in near future you will be the witnesses to the progress of events" around the Kashagan, Iskakov said.
Separately, Interfax-Kazakhstan reported that Sauat Mynbayev was appointed the new minister of energy and mineral resources of the country. Previously he was chairman of the board of directors of the Samruk holding company.
Mynbayev replaces Baktykozha Izmukhambetov.