The late pop singer Michael Jackson's 81-year-old father demanded his share of 15,000 dollars from the late son's estate as monthly expenses, his attorneys said Friday.

The attorneys filed court papers on behalf of Joe Jackson in Los Angeles Superior Court, urging the court to award Jackson's estranged father a family allowance "because Michael Jackson actually supported him during his lifetime and he does not have other source for support."

Joe Jackson receives 1,700 dollars monthly in Social Security payments, and he has diabetes and had a stroke in 1998.

The documents said the special administrators of the estate, John Branca and John McClain, should have obtained an allowance for him just as they did for the singer's mother, Katherine Jackson.

Both men knew that Michael Jackson supported his father financially for decades, the court papers state. Katherine Jackson lives in Encino, California and Joe Jackson resides in Las Vegas, Nevada.

Judge Mitchell L. Beckloff previously approved nearly 30,000 dollars in monthly payments to Katherine Jackson each month and another 60,000 dollars monthly payment for the care of the singer's three children.

Michael Jackson, 50, died from a drug overdose on June 25 while he was rehearsing for 50 sold-out concerts in London. His personal physician Conrad Murray is considered the focus of a criminal investigation but he has not been charged. Police classified his death as homicide, and the investigation is still ongoing.

(Xinhua News Agency November 11, 2009)