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The scene of a bomb attack on mosque in Pakistan's Sindh province that reportedly killed 40 people on Friday. Image Credit: Reuters

ISLAMABAD (Reuters) - The death toll in a major explosion targeting a Shi'ite mosque in the Pakistani city of Shikarpur rose to 40 on Friday, a local doctor said.

"The death toll has climbed to 40. We are still compiling lists from nearby cities where the wounded have been taken for treatment," said the doctor at a local hospital, Shaukat Memon.

More than 50 were wounded in the attack during Friday prayers.

An official earlier said the bomb blast hit a mosque, causing “multiple” deaths and wounding many more, in the latest sectarian attack to hit the restive country.

The town of Shikarpur is around 470 kilometres north of Karachi.