Despite a sharp drop in executions, the United States ranked sixth among the world's executioners in 2016 behind only China, Iran, Saudi Arabia, Iraq, and Pakistan, according to a report by the British-based international human rights group, Reprieve. Maya Foa, a director of Reprieve, said "[i]t is alarming that countries with close links to the UK and [European Union] continue to occupy the ranks of the world's most prolific executioners in 2016." Questions of innocence, execution of juvenile offenders, and use of the death penalty for non-lethal drug offenses were among the top worldwide problems in the administration of the death penalty cited by Reprieve in the report. "[W]e have found children on death row, innocent people hanged, drugs offences dealt with as capital crimes, and torture used to extract false confessions," Foa said. "Countries that oppose executions must do more in 2017 to ensure that their overseas security assistance does not contribute to others states use of the death penalty.” Reprieve's analysis of global executions in 2016 found that China continues to carry out the most executions of any country, though the exact number is a state secret. Nearly half of the more than 500 prisoners executed in Iran were killed for committing drug offenses. In Saudi Arabia, those executed included juvenile offenders and political protestors. The ongoing armed conflict in Iraq made information on the country's executions difficult to obtain. Pakistan lifted a moratorium on executions in 2014, ostensibly in response to terrorism. But Reprieve found that 94% of those executed had nothing to do with terrorism. The Pakistan Supreme Court found in 2016 that two men who had been hanged were innocent. The Reprieve report also raised concerns about Egypt's high rate of death sentencing -- more than 1,800 people have been sentenced to death in that country in the last three years.