Famous artist Anish Kapoor has dedicated his most recent work of art - also his largest piece yet - 'Leviathan' to Ai Weiwei, a Chinese artists who has been detained by Beijing police authority for crimes which have not been specified.

I wish to dedicate my new work, Leviathan at the Grand Palais, Paris, to my colleague Ai Weiwei. His arrest, disappearance and alleged torture are unacceptable, the Indian-born Kapoor told AFP in a statement.

Ai, 53, was brought into custody in early April after he tried to board a flight in Hong Kong. Ai has been an outspoken critic of human rights issue in China, and has more than 80,000 followers on Twitter.

Since his detainment, Ai's studio has been sealed off and he has been out of contact, which has created an international call for China to release the artist.

Ai who designed Beijing's iconic Bird's Nest Olympic Stadium, is known for a broad range of art mediums. He is an activist, a curator, photographer, and is active in architecture.

Kapoor's installation opens in Paris today at Paris's Grand Palais, and will be on exhibit through June 23.

VIEW RELATED STORY ON ANISH KAPOOR'S LEVIATHAN EXHIBIT HERE

VIEW AI WEIWEI'S ENGLISH TWITTER ACCOUNT HERE