BEICHUAN, China — A Chinese state news agency said that aftershocks have cut off roads and telecommunications in quake-hit Sichuan province, burying a number of vehicles.

Xinhua News Agency said the aftershocks hit Lixian, not far from the epicenter of Monday’s 7.9-magnitude earthquake.

The confirmed death toll from the earthquake has risen to 19,509, but the government said that number was expected to more than double.