"France reaffirms its continued opposition to the death penalty in all places and in all circumstances. It calls on the leaders of the [Middle East] region to do everything to avoid exacerbation of sectarian and religious tensions," the ministry said in a statement on Saturday.
Late on Saturday, demonstrators protesting in Tehran against the execution of Sheikh al-Nimr, attacked the Saudi embassy. Local police reportedly detained 40 protesters. Protests resumed in the Iranian capital the following day.
Al-Nimr was sentenced to death on charges of inciting hatred and disobedience to the Saudi king in 2014.