MUZAFFARABAD, Kashmir — At least 55 people have been killed and dozens injured as avalanches swept away homes in the mountainous region of the Pakistan-controlled portion of Kashmir.

The powerful avalanches have also affected Indian-controlled areas of the disputed region, with at least 10 people killed on Tuesday, officials said.

At least three dozen children were struck by an avalanche as they made their way to school on Monday in the part of Kashmir controlled by Pakistan, officials said. One child was killed and three others injured.

Most of the casualties took place in the Neelum Valley, which abuts a river that divides the Pakistani and Indian portions of Kashmir.