Fifth Mers death in South Korea

Tourists wear masks as a precaution against Mers on a subway train in Seoul, South Korea. (AP)

A fifth person in South Korea has died of the Mers virus, as the government announced that it is strengthening measures to stem the spread of the disease.

Sixty-four people in South Korea have been infected by Middle East Respiratory Syndrome since last month in the largest outbreak outside the Middle East.