NEW DELHI, India (AP) _ Worried about a heat wave that has killed 110 people in India, authorities on Saturday ordered schools in the capital to close immediately, advancing the annual summer vacation by two weeks.

The order was issued by the Education Department in New Delhi, domestic news agencies reported. Schools in India are not air-conditioned, and many children must walk long distances from home.

The Weather Office in New Delhi said temperatures soared to 117 degrees in Hissar, a town in Haryana state that borders the capital.

Dust storms were expected in some parts of the northern states in the next few days, which might reduce temperatures, the Weather Office said.

The most deaths from the heat wave that began last month have occurred in the eastern coastal state of Orissa, where at least 40 people have died in the last two weeks. Other deaths have occurred in the northern state of Bihar and the southern state of Andhra Pradesh.

Monsoon rains were expected to begin in the south in June and travel through the plains toward the Himalayas.