Nurses of the Ganga Ram Hospital protested against the illegal construction of a gynae ward in the hospital on Saturday.
They blocked the Fatima Jinnah Road and chanted slogans against the authorities.
The building that set off the demonstrations is a Gynaecology ward which nurses say is being built on land occupied by their hostel.
They said that they need a decent place of residence to do their jobs.
A man was arrested at the scene after taking photgraphs. He claimed to be a journalist but couldn't prove his identity.
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