The Luxembourg public prosecutor has demanded a 12-year sentence against a Swedish national for planning an attack on the 2020 Eurovision Song Festival, the Luxembourg justice department has confirmed to the Parool.

The trial of 23-year-old chemistry student Alexander H  took place earlier this month, the Parool was told, but both the festival’s organiser and the Dutch public prosecution office deny any knowledge of the case.

H, then not yet 18, was arrested at his home in Strassen, a small town in Luxembourg, where police found a laptop with a document titled  ‘Fun time for Eurovision 2020 – For a better and less over-accepting future’, Luxembourg broadcaster RTL, which was present at the trial, reported.

The document, which was said to be the work of H and a Dutch accomplice about whom nothing further is known, contained detailed information about a chemical attack on visitors to the festival which was supposed to be held at the Ahoy events centre in Rotterdam but was cancelled due to the coronavirus pandemic.

H wanted to spread cyanide or ricin via the ventilation system of the venue and use homemade explosives. According to RTL, police found chemicals and bomb-making materials at his home.

He also planned to sabotage the Dutch electricity system. The Luxembourg intelligence service foiled the attack, the broadcaster quoted the public prosecutor as saying at the trial.

According to local paper Le Quotidien, H was a member of neo-Nazi, paramilitary organisation The Base, which is classified as a terrorist organisation in the EU.

The paper quoted detectives involved in the case saying H “hated women, people of colour, homosexuals and people of a different religion from his own” and described himself as a “good Aryan”.

Festival producer Sietse Bakker told the Parool the case was “new to him” while the Dutch public prosecution office said it had no knowledge of it. Counter terrorism agency NCTV told the paper it does not comment on ongoing cases, and does “not investigate persons or organisations”.

H has been found guilty of planning a terrorist act and faces 12 years in jail. He will be sentenced in November.