LAHORE, Pakistan (AP) — Dangerously poor air quality on Monday forced Pakistani authorities in the cultural capital of Lahore to close primary schools for a week, government officials said, after the air-quality index hit a record high over the weekend.

The measures in Lahore were part of a larger effort to protect children from respiratory-related and other diseases in the city of 14 million people. The government said everyone in Lahore was required to wear a face mask.

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