More than 100 people have been killed in avalanches that buried homes in the northeastern Panjshir Valley, officials have said.

The avalanches buried homes across four northeast provinces, killing those beneath, said Mohammad Aslam Syas, the deputy director of the Afghanistan Natural Disaster Management Authority.

The province worst hit appeared to be Panjshir province, about 100km northeast of the capital, Kabul, with around 100 homes destroyed or damaged, Syas said.

Rescue teams had been dispatched to the affected areas and casualties were expected to rise, Syas said.

Large swathes of Afghanistan have been covered in snow over the past 24 hours as a major storm has interrupted an otherwise mild and dry winter.
Al Jazeera's Nicole Johnston, reporting from Kabul, said Panjshir is difficult to reach because it has two large mountain ranges with a narrow valley in the middle and one road in and out of the province.

"So far [emergency teams] they have been able to clear only 50km into that road," she said.

"The provincial governor told us that they managed to get 300 people together to try and help the emergency teams but they don't have the right equipment.

"They are using shovels and in some cases their bare hands to try and get people out.

"Many of those houses that have heavy dumps of snow on them are in the higher mountain ranges."

Avalanches are common in Afghanistan's mountainous north.

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Deadly avalanches in northeastern Afghanistan

Al-Jazeera