A massive statue of Karl Marx, the founding father of communism, was erected in his birthplace on Friday after the southern German city of Trier decided to accept the bronze sculpture from China despite concerns over the country's human rights record.

The 3-ton statue was erected ahead of the 200th birthday of the influential thinker and philosopher on May 5, when it will be unveiled.

"Karl Marx is Trier's most famous son," city official Andreas Ludwig said on Friday.