More than 100 people have now died in Lahore after taking contaminated heart medicine,
Pakistan officials have said.
The deaths, which span a three-week period,
are linked to a batch of faulty drugs given to up to 40,000 cardiac patients at a government-run hospital.
Another 250 people remain in hospital while an investigation into the situation gets under way.
The owners of three local drugs companies alleged to have supplied the contaminated drugs have been arrested.
.