NEW YORK (Reuters) - New York prosecutors could file additional charges against former Tyco International Ltd. Chief Executive L. Dennis Kozlowski, including grand larceny, sources close to an investigation said on Friday.

Other people connected with Bermuda-based Tyco could be charged with falsifying business records to assist Kozlowski, the sources said. The sources declined to be more specific and couldn't say when any charges would be filed.

A call to Kozlowski's attorney was not immediately returned.

Earlier this week, The Wall Street Journal reported that Kozlowski used $135 million of Tyco money to pay for a lavish lifestyle that included the purchase of yachts, mansions and artwork. The money was borrowed from a special Tyco fund and in some cases was forgiven or never repaid, the article said.

“The big question is did he have permission to take the money,” one of the sources said. “If not, it's stealing.”

If he were to be charged with grand larceny and convicted, he could face up to 25 years in prison in addition to any prison time he'd have to serve were he to be convicted of previous charges involving dodging state sales taxes.

Kozlowski served as CEO of Tyco from 1992 until this year, raking in several hundred million dollars in salary as he built it from a little-known company into a sprawling international conglomerate whose products include garbage bags, health care equipment, and ADT burglar alarms.

He resigned in June, a day before New York prosecutors indicted him for scheming to avoid $1 million of sales tax on artwork by such masters as Monet and Renoir.