Beyonce's father Mathew Knowles is in trouble with U.S. officials after allegedly failing to hand over more than $1.2 million (£774,193) in taxes.

Bosses at the Internal Revenue Service (Irs) have filed a tax lien against the music mogul in relation to unpaid bills from 2010 and 2011.

Knowles, who stepped down as his daughter's manager in 2011, is alleged to owe $485,575 (£313,274) from 2010 and $728,004 (£469,680) from the following year, according to documents obtained by Tmz.com.