By Fredrick Nzwili

NAIROBI, Kenya (CNS) — Two Catholic nuns were shot and killed along a highway in South Sudan Aug. 16 as they were returning home to Juba. Seven other sisters survived the attack. Sisters Mary Daniel Abut and Regina Roba were members of the Sisters of the Sacred Heart in the Archdiocese of Juba.

They were returning to Juba after attending the centenary celebrations at a parish in the eastern Diocese of Torit. Father Samuel Abe of the Juba Archdiocese announced a four-day mourning period Aug. 17. The sisters will be buried Aug. 20 at the St. Theresa Cathedral in Juba.

The nuns’ murders are threatening to scuttle ongoing peace talks led by the Sant’Egidio Community in Rome. South Sudanese President Salva Kiir Mayardit said his government could reconsider its position on the initiative; he blamed the ambush on armed factions that have not signed the 2018 revitalized peace agreement. “The responsibility for death lies squarely on the hold-out groups,” and the government “condemns this act of terror in the strongest terms possible” Kiir said in a statement conveying his condolences to Archbishop Stephen Ameyu Martin Mulla of Juba.

He warned the government’s pursuit of inclusive peace should never be taken for weakness and exploited to kill innocent citizens. At the Vatican, Cardinal Pietro Parolin, Vatican secretary of state, sent a telegram to the chargés d’affaires at the Vatican Embassy to South Sudan, saying Pope Francis was “deeply saddened to learn of the brutal attack.”