'Spiderman' arrested in Sydney

Police arrest environmental activist Alain Robert after he climbs the Lumiere building in Sydney.

Spiderman ascends the 57-storey Lumiere building in Sydney.

Environmental activist Alain Robert, known as spiderman, has become famous for "free climbing" tall buildings around the world.

"It is pretty extraordinary stuff, I mean the fact that he is climbing without any ropes or any safety gear."

The Frenchman climbs these buildings to raise awareness on climate change.

Police often arrest him when he reaches the top.

"The New South Wales police look very dimly on this, we had to use a number of different resources here today, obviously been a tremendous effect on the people of Sydney, we have had to close streets etcetera, so we will be prosecuting him to the full extend of the law."

Robert has climbed more than 80 buildings worldwide including the Petronas Twin Towers and the Eiffel Tower.

Andrew Bossone, Reuters.