British artist Richard Hamilton, who was regarded by many as the father of pop art, has died today aged 89.   
   
Hamilton created a string of renowned works throughout the sixties that inspired artists such as Andy Warhol and Joseph Beuys.

He had continued working on his latest pieces up until a few days before his death. It is not yet known how he died.

Friends and former colleagues have today paid tribute to Hamilton, calling his influence on art 'immeasurable'.

'This is a very sad day for all of us and our thoughts are with Richard's family, particularly his wife Rita and his son Rod,' art dealer and gallery owner Larry Gagosian said.

A statement from the gallery called Hamilton the 'father of pop art' and a 'pioneering artist of unparalleled skill, invention and lasting authority.  

'His influence on subsequent generations of artists continues to be immeasurable.'  
        
Nicholas Serota, director of London's Tate gallery, added: 'Greatly admired by his peers, including (Andy) Warhol and (Joseph) Beuys, Hamilton produced a series of exquisite paintings, drawings, prints and multiples dealing with themes of glamour, consumption, commodity and popular culture.'