Smog chokes Indian capital as emergency measures fail

NEW DELHI - A thick cloud of toxic smog 10 times the recommended limit enveloped India's capital city on Monday, as government officials struggled to tackle a public health crisis that is well into its second week.

Levels of poisonous airborne particles, known as PM 2.5, had reached 498 on Monday afternoon, compared with the upper limit of "good" quality air at 50.

India's weather office said rain was forecast over the next three days which could help clear the smog.