Three men and a police officer have been stabbed at a mosque in Birmingham, West Midlands Police have said.
The male police constable was responding to reports that three men had been stabbed inside the mosque in the Ward End area of the city when he was attacked.
The four men are being treated in hospital for their wounds and are described as "stable".
A 32-year-old man has been arrested on suspicion of attempted murder and is currently in custody, a police spokeswoman added.
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