London: Tunisia's Bardo Museum will re-open this week after it was attacked by gunmen, killing at least 22 people, mostly European tourists, a media report said on Tuesday.

Two armed terrorists attacked the Bardo museum in the capital Tunis last Wednesday.

Seventeen tourists were killed, including visitors from Japan, Italy, Colombia, Australia, France, Poland and Spain, officials said, adding two Tunisians, one of them a police officer, were also killed.

Security forces killed the two gunmen believed to have been trained by the Islamic State (IS) militants in Libya. The IS owned responsibility for the attack on the museum, which is next to the country's parliament.

A concert and a public rally are scheduled to take place prior to the opening with museum officials saying they want to show the world that the gunmen 'haven't achieved their goal', BBC reported.

On Monday, Tunisian Prime Minister Habib Essid dismissed six police chiefs. According to officials, Essid noted several security deficiencies during a visit to the museum, which houses a major collection of Roman mosaics and other antiquities.

Suspects have been arrested but just the two gunmen were thought to have raided the museum.

The two seen in footage released by the interior ministry were named as Yassine Laabidi and Hatem Khachnaoui.