"We express our deep dismay at the execution of a young Sri Lankan woman in Saudi Arabia on Wednesday," the UN Human Rights High Commissioner's office has said.
Rizana Nafeek, who arrived in Saudi Arabia from Sri Lanka to work as a housemaid in 2005, was charged with the murder of her employers' baby a week after her arrival.
"Despite a birth certificate that allegedly showed she was a minor at the time of the baby's death and repeated expressions of concern from the international community, she was convicted of murder, sentenced to death and beheaded".
The UN rights office said that it was deeply troubled by reports of irregularities in her detention and trial, including that no lawyer was present to assist her in key stages of her interrogation and trial, that language interpretation was poor.