The son of an Iranian woman sentenced to be stoned to death for adultery said yesterday that he fears she will be executed shortly after this week's end to the Muslim holy month of Ramadan.

Sakineh Mohammadi Ashtiani's 22-year-old son Sajjad Mohammadi Ashtiani was speaking by telephone to a news conference organised in Paris by French philosopher Bernard-Henri Levy.

"Ramadan is coming to an end and, according to Islamic law, executions can resume," he warned.

The Islamic calendar varies a little around the world, but Ramadan is due to come to an end everywhere this week.

Sajjad said he had not had any contact with his 43-year-old mother since her August 11 televised "confession", which her lawyers believe was coerced from her by Iranian authorities.

"Weekly visits have been halted. We heard that she had received 99 lashes in prison," the Iranian said.

Mohammadi-Ashtiani was sentenced to death for adultery and has since also received a 10-year jail term for participating in her husband's murder.

Her case has generated a worldwide uproar, with international governments and human rights bodies denouncing stonings as barbaric, and some questioning whether she received a fair trial.