Pedestrians and motorists cross a bridge over a stream on the outskirts of Islamabad. AFP

The 47 doctors protested in Quetta, the capital of southwestern Baluchistan province, on Monday, when they were detained. They were released later the same day, according to provincial spokesman Liaquat Shahwani.

An army statement on Tuesday said the "emergency supplies of medical equipment, including PPE (Personal Protective Equipment) are being dispatched to Quetta."

However, some of the doctors said they were mistreated by police and that some of their colleagues were beaten. The physicians declined to give their names, fearing reprisals.

Two doctors have died after contracting the new virus in Pakistan, which has recorded 4,004 cases and 54 deaths. Many of the cases have been traced to pilgrims returning from neighboring Iran. Pakistani authorities have imposed a countrywide lockdown until April 14.