The number of people dead from last week’s Moscow concert hall attack has risen to 143, according to Russian authorities.

The updated figure from Russia’s Emergencies Ministry did not state the number of wounded.

However, health minister Mikhail Murashko said on Wednesday that 80 people were in hospital and another 205 had sought medical treatment following the attack.

An affiliate of the Islamic State group claimed responsibility for the assault on Moscow’s Crocus City Hall, while US intelligence said it had information confirming the group was responsible.

Russian officials, however, have insisted that Ukraine and the West had a role, claims that Kyiv vehemently denies.