British acting couple Jude Law and Sienna Miller have reportedly broken off their relationship for a second time.

The break up comes after Law, 38, and Miller, 29 were reported to have bought an eight million pound (13 million USD) home together in north London just six weeks ago.

A representative for Law confirmed the split in a statement to media.

The on-again, off-again couple met on the set of the 2003 remake of "Alfie", but called it quits two years later after Law admitted to infidelity with his children's nanny.

They rekindled their relationship in 2009 and were engaged to be married, appearing together at the Met Gala in New York last May where Law supported Miller at the show for her label "Twenty8Twelve" which she launched her sister, Savannah.

Law has three children with his ex-wife, the British actress and fashion designer Sadie Frost and a fourth child with model Samantha Burke.

Miller is currently rehearsing for a play in the West End, while Law is also in the British capital, filming the sequel to Sherlock Holmes.

Doug MacLaurin, Reuters.