Woman Wounded In Tunisia Museum Attack Dies

France's President Francois Hollande has announced that a French tourist injured in the assault on Tunisia's national museum has died, bringing the total number of victims of the Islamic State attack to 22.

"The President of the Republic expresses his deep sadness following the death in Tunis of Mrs Huguette Dupeu who was seriously injured" in the attack, which also claimed the lives of three other French nationals, the presidency said in a statement.

Seventeen other foreign tourists - from Britain, Italy, Japan, Spain, Belgium, Poland, Russia, Colombia and Australia - and one Tunisian policeman were also killed when gunmen swooped on the capital's Bardo Museum on 18 March.

Two gunmen were killed in the brazen assault which was claimed by Islamic State extremists.

Authorities have since made arrests but are still hunting for the suspected mastermind.

President Hollande is set to join other world leaders and thousands of Tunisians later this morning in a "march again terrorism" in Tunis.

The march will begin at Bab Saadoun Square and end at the national museum where a stone tablet will be dedicated to the memory of the victims.

Tunisia's tourism minister Salma Elloumi Rekik said on Saturday that the attack was "a big blow, but this blow did not kill us, it made us stronger".

Tunisia has seen an upsurge in Islamist extremism since its authoritarian president Zine El Abidine Ben Ali was overthrown in January 2011 and a democratic government was formed.

Dozens of police officers and military personnel have been killed or wounded in attacks blamed on Islamist militants.