In pictures: Pope Francis's visit to UAE in 2019

Pope Francis is welcomed by President His Highness Sheikh Mohamed bin Zayed Al Nahyan (then the Crown Prince of Abu Dhabi) and His Highness Shaikh Mohammad bin Rashid Al Maktoum, Vice-President and Prime Minister of the UAE and Ruler of Dubai, in Abu Dhabi on February 4, 2019.

Sheikh Mohamed bin Zayed Al Nahyan along with Pope Francis and Dr Ahmad Al Tayeb, Grand Imam of Al Azhar, in Abu Dhabi on February 3, 2019.

Members of the UAE Armed Forces Cavalry division escort Pope Francis upon his arrival at the Presidential Palace in Abu Dhabi on February 4, 2019.

Pope Francis and the Grand Imam of Al-Azhar, Dr Ahmed Al-Tayyeb with Sheikh Mohamed bin Zayed Al Nahyan and Sheikh Mohammed bin Rashid Al Maktoum during signing ceremony of the Human Fraternity Document in Abu Dhabi on February 4, 2019.

Pope Francis attends a meeting with the Muslim Council of Elders at the Shaikh Zayed Grand Mosque in Abu Dhabi on February 4, 2019.

Pope Francis arrives for a meeting with the Muslim Council of Elders at the Shaikh Zayed Grand Mosque in Abu Dhabi.

Pope Francis arrives with the popemobile at the Zayed Sports City Stadium to celebrate a mass in Abu Dhabi on February 5, 2019.

Pope Francis greets the crowd as he arrives to lead mass at the Zayed Sports City Stadium, Abu Dhabi on February 5, 2019.

Pope Francis greets people during a visit to the St Joseph's Cathedral in Abu Dhabi in Abu Dhabi on February 5, 2019.

Pope Francis kisses a child during a visit to the St Joseph's Cathedral.

Pope Francis waves to the crowd as he arrives to lead mass at the Zayed Sports City Stadium to celebrate a mass in Abu Dhabi on February 5, 2019.

Pope Francis at the Zayed Sports City Stadium to celebrate a mass.

Pope Francis leads the mass at the Zayed Sports City Stadium.