Visitors look at the tomb of German revolutionary philosopher Karl Marx, a Grade I-listed monument, with the marble plaque on the front showing damage from recent vandalism in Highgate Cemetery in north London on February 5, 2019. - Vandals have smashed and defaced the London tomb of Karl Marx in what the cemetery said appeared to be a deliberate attack against the philosopher’s ideology. A marble plaque with the names of Marx and his family -- the monument's oldest and most fragile part -- was repeatedly hit with a blunt metal instrument, Ian Dungavell, who runs the cemetery trust, told AFP on Tuesday. (Photo by Tolga AKMEN / AFP)

The memorial of German philosopher Karl Marx has been vandalised in London for the second time in two weeks, the cemetery that manages the site said on Saturday.

The words “architect of genocide”, “terror and oppression” and “mass murder” were written in red paint on the grave in the capital’s Highgate cemetery.

“Doctrine of hate” was also scrawled on the memorial, among other slogans.

The grave of Marx, who developed the theory of international communism, was also attacked on February 4 when it was seemingly struck several times with a blunt metal instrument.

A marble plaque with the names of Marx and his family — the monument’s oldest and most fragile part — was repeatedly hit.

“Vandals back at Marx Memorial, Highgate Cemetery. Red paint this time, plus the marble tablet smashed up,” tweeted Highgate Cemetery on Saturday alongside photos of the memorial covered in red paint.

“Senseless. Stupid. Ignorant. Whatever you think about Marx’s legacy, this is not the way to make the point,” it said.

German revolutionary philosopher Marx moved to London in 1849 and lived in the city for the rest of his life.

His theories became the basis for communism. He died on March 14, 1883, aged 64.

The granite slab monument in north London, 12 feet (3.7 metres) tall and topped with a bronze bust of Marx, was funded in 1956 by the Communist Party of Great Britain.