LONDON, DEC. 4 -- Amnesty International charged today that Iran has executed more than 5,000 people in the past three years, many for political beliefs, and a U.N. committee adopted a resolution calling on Tehran to end human rights abuses.

Despite some changes since the 1989 death of Ayatollah Ruhollah Khomeini, government critics continued to be arrested and tortured, some for nothing more than signing a letter criticizing lack of human rights and freedoms, Amnesty International, an international human rights group, said in a report. The Iranian government has done little to curb such actions, the report said.

Amnesty quoted ex-prisoners as saying a "death commission" of Iranian officials chose prisoners every day and sent them to their deaths if a cursory interrogation established that their views were not acceptable. In 1988, more than 2,500 political prisoners were killed secretly on orders of the commission, the organization said.

{A committee of the U.N. General Assembly approved a resolution expressing concern about "allegations of violations of human rights" contained in a U.N. report on Iran, Washington Post special correspondent Trevor Rowe reported from the United Nations.

{The resolution, which calls on Iran "to investigate and rectify" abuses, was passed by consensus and is expected to be approved by the General Assembly next week.

{A more harshly worded draft of the resolution, referring to allegations of "executions, ill-treatment and torture," was abandoned Monday in exchange for Iran's agreement to join in consensus approval of the resolution and allow the Red Cross to visit Iranian jails.}