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The Storting, the Norwegian parliament, accepted the criticisms and "offered profound apologies" for the failures, allocating funding to a study of the impact of the disaster on the bereaved and survivors.

The average age in the Storting is 46 and has remained so since the end of the 1990s, because while a record number of young people are joining, they are also working longer.

But since she was elected to the Storting, there has been far less time for such activities.

Grøthe believes that having so many young politicians in the Storting brings many advantages, with different cultures and ages better represented.

Maren Grøthe became the youngest national politician in Norway's history when she was elected to its national assembly, the Storting, aged just 20 last year.