By Crispian Balmer and Emilio Parodi

ROME (Reuters) -Italian police have seized villas and yachts worth 143 million euros ($156 million) from five high-profile Russians who were placed on sanctions lists following Moscow's attack on Ukraine, the government said on Saturday.

The luxury properties were sequestered in some of Italy's most prestigious retail estate locations - the island of Sardinia, by Lake Como and in Tuscany - while two super-yachts were grabbed at their moorings in northern ports.

The police operations were part of a coordinated drive by Western states to penalise wealthy Russians and try to force President Vladimir Putin to withdraw his troops from Ukraine.

A list issued by Prime Minister Mario Draghi's office showed the most valuable asset now in police hands is a 65 metre (215 ft) yacht, the Lady M, which has a price tag of 65 million euros and belonged to Russia's richest man, Alexey Mordashov.

It was impounded in the port of Imperia.

A second luxury vessel, the Lena, was seized in the nearby port of Sanremo. It was worth some 50 million euros and was owned by Gennady Timchenko, whom Putin has described as one of his closet associates.

The billionaire businessman had a villa worth 17 million euros seized on the Mediterranean island of Sardinia, while Oleg Savchenko, a member of the Russian parliament, had his 17th century house near the Tuscan city of Lucca, worth some 3 million euros, taken from him.

An undisclosed number of properties valued at eight million euros were confiscated in Como from state TV host Vladimir Soloviev, who reportedly complained on Russian television when he found out last month he risked losing his Italian villas.

"But you told us that Europe has sacred property rights," he was quoted saying by The Daily Beast.

Russian oligarchs have bought numerous villas in choice Italian settings over the past 20 years and sources have said more assets are expected to be seized in coming days.

Uzbekistan-born metals and telecoms tycoon Usmanov is well known in Italy for owning multiple properties on Sardinia, while Italian media say Mordashov owned a villa worth some 66 million euros ($72 million) on the same island.

Taking into account the assets of his whole family, Forbes magazine estimates that Mordashov had an estimated net worth of $29.1 billion before sanctions hit

Mirko Idili, a coordinator of the CISL union in Sardinia, has warned that the sanctions and a reduced presence of rich Russians this summer could negatively affect the island's economy and put more than 1,000 jobs at risk.

Italian banks were instructed by the Bank of Italy's financial intelligence division on Friday to urgently let it know of all measures taken to freeze the assets of people and entities placed on the EU list.

($1 = 0.9152 euros)

(Reporting by Emilio Parodi and Giuseppe Fonte; Writing by Crispian Balmer; Editing by David Holmes)