A Copenhagen art show was reported to police on Monday on allegations of encouraging terrorism for plans to portray suicide bombers killed in the Brussels and Paris attacks as heroes.

A Danish group of artists plans to include brothers Ibrahim and Khalid El-Bakraoui, who detonated bombs in the deadly Brussels attacks in March, in the controversial show.

Foued Mohamed-Aggad, who blew himself up at Paris music venue Bataclan in November, is also to be in the exhibition partly inspired by Teheran's Martyrs' Museum to people killed in Iran's Islamic revolution and war with Iraq.