| Heyn, right, was a promising economist who took up his new post of undersecretary of trade just 10 days ago [AFP]
An Argentine government minister has been found hanged in his hotel room in the Uruguayan capital Montevideo during a summit meeting of the South American trade group Mercosur, police said.
Ivan Heyn, 33, Argentina's undersecretary of trade, was found dead at the Radisson Hotel on Tuesday, Jose Luis Rondan, a police spokesman, told a news conference.
"He apparently died by hanging" with a belt, Rondan said. He said police were trying to determine whether it was a suicide, a crime or an accident. A Uruguayan official earlier said that Heyn had committed suicide.
An investigating judge told local media that the circumstances surrounding Heyn's death remained unclear.
News of his death shocked the Mercosur summit, attended by the presidents of Argentina, Brazil, Paraguay, Uruguay and Venezuela.
Argentine President Cristina Kirchner de Fernandez was informed about the death while she was attending a closed door meeting of the presidents, and was so upset she was seen by her doctor, according to the Uruguayan official.
|Heyn's death has shocked the meeting of
South American leaders [AFP]
But Kirchner, who is supposed to assume the presidency of the bloc during the summit, later returned to the meeting with the other presidents.
Organisers meanwhile cancelled a planned official picture taking of the South American leaders.
Security presence was stepped up at the hotel, where some of the leaders attending the summit are staying.
Argentina's embassy confirmed Heyn's death, and said in a statement that Uruguayan authorities were taking "all the necessary legal steps with regard to this tragic incident."
Heyn was a promising economist who belonged to the Peronist youth group La Campora that supports the government of Kirchner and supported the previous administration of her late husband, Nestor Kirchner.
A former leader of the Argentine University Federation, Heyn was an undersecretary in the ministry of the economy during Kirchner's first term in office. He took up his new post just 10 days ago after Kirchner's re-election.
A telegenic commentator, he was often featured on state television explaining government policy.