German police closed the Oktoberfest fairgrounds Wednesday morning following a bomb threat from the suspected perpetrator of an explosion in northern Munich, city officials said.

At least one person’s death was believed to be connected to the explosion at a residential building early Wednesday, which Munich police said was deliberately set on fire and part of a domestic dispute.

MINIVAN PLOWS THROUGH CROWD AT PENNSYLVANIA FESTIVAL, INJURING THREE PEOPLE

It was not immediately clear whether the deceased was the suspected perpetrator or someone else. Another person, who was not considered to be a danger to the public, remained missing.

Specialized teams were called to the scene to defuse booby traps in the building, police said. Photos from the area also showed a burned-out van.

MASSIVE WWII BOMB FORCES OVERNIGHT EVACUATION OF 6,000 RESIDENTS FROM HOMES

Officials discovered the bomb threat to Oktoberfest in a letter from the alleged perpetrator. Police searched the fairgrounds for other explosive devices and asked workers to leave the area. Authorities said the festival will be closed at least until 5 p.m. local time (1500 GMT) Wednesday.

This year’s Oktoberfest began on Sept. 20 and ends Oct. 5. The world’s largest beer festival usually attracts up to 6 million visitors.

In 1980, Oktoberfest was the target of a deadly neo-Nazi attack. The bombing on the evening of Sept. 26, 1980 claimed 13 lives, including that of three children and the attacker, student Gundolf Koehler, a supporter of a banned far-right group. More than 200 people were wounded.