Police concerned ornate blades taken from Kelham Island Museum could be sold on the black market in the latest of a series of attacks on institutions in the UK city

Murtha died suddenly in 2013, having never received recognition for her photography. But today, she is recognised as one of the most significant artists of her generation

Almost 60 works by artists including Rembrandt, Annibale Carracci and Sebastiano del Piombo will go on show at the Millennium Gallery