Parts of Austria, southern Germany sink deeper into snow

In Bulgaria, authorities said two snowboarders died in an avalanche today.In German, a nine-year-old boy was killed by a falling tree and the driver of a snow plow died today after his vehicle toppled into an icy river.

Rescuers could not save Max Meyer after he was buried in an avalanche.

His family were unable to help as they had no emergency supplies or a shovel with them.

Local police said the boy died after the family found themselves in rough, untracked and very steep terrain on Wednesday.

It has been reported that the boy was skiing with his parents and 14-year-old brother they were caught in hard off-piste terrain and called for help.

Max and his mother were covered with snow. The 55-year-old was able to free herself.

The 16-year-old was skiing off-piste with his family at the time.

Rescuers reached Max about 20 minutes later, but he could not be revived.

The boy, 16, is believed to be from NSW and was skiing with his father, mother and younger brother in the popular resort of St Anton am Arlberg when the avalanche struck on Wednesday afternoon.

It was "such an enormous loss", the parent said.

A fellow student wrote on Facebook: 'He was an absolutely buzz to be around and so smart, especially in languages.

'He was always first to participate in initiatives at school and always striving to be more involved. Absolutely heartbreaking. He will missed by all of his peers'.

There is an investigation underway into the cause of the avalanche.

The Australian Department of Foreign Affairs and Trade did not immediately respond to a request for comment. He said: "We have seen some significant and disruptive snowfall across parts of Germany and Austria in recent days and we still have red warnings across southeastern parts of Germany and for much of Austria for further snow".