Two Chinese nationals were wounded on Tuesday by a security guard who opened fire at a garment factory in Pakistan's commercial hub Karachi, in the latest in a string of attacks that have spurred Beijing to demand better security for its citizens.

Authorities in Pakistan said Tuesday that a local security guard at a factory in the southern port city of Karachi shot and injured two Chinese nationals, the third attack this year in the country targeting workers from China.

Two Chinese nationals were shot and injured by a security guard at a textile factory in Karachi, Pakistan. The incident is thought to be the result of