King Felipe of Spain with his wife Letizia are seen at a high mass celebrated in memory of the victims of the van attack at Las Ramblas earlier this week, at the Basilica of the Sagrada Familia in Barcelona, Spain August 20, 2017.[Photo/Agencies]

BARCELONA -- King Felipe VI and Queen Letizia of Spain attended a mass for "Peace and Concord," which was held in Barcelona's Sagrada Familia on Sunday morning in memory of the 14 victims of the Barcelona and Cambrils terrorist attacks.

The religious ceremony was also attended by Spanish Prime Minister, Mariano Rajoy and Deputy Prime Minister, Soraya Saenz de Santamaria, the Mayor of Barcelona, Ada Colou and Catalan regional leader, Carles Puigedemont, as well as the Prime Minister and President of Portugal, Antonio Costa and Marcelo Rebollo de Sousa, who showed their support for the 2 Portuguese victims of the attacks, and representatives of other authorities and security forces.

Hundreds of people, both locals and tourists attended the ceremony in one of Barcelona's most famous buildings and a place that was rumored to be one of the original targets for the terrorist cell.

They heard Sebastia Taltavull, the Auxiliary Archbishop of Barcelona ask for the pain felt in Barcelona to open the door for "a new style of understanding which respects human rights and gives dignity to all, overcoming all differences and exclusions."

Meanwhile the Cardinal-Archbishop, Jose Omella asked for society to be "artisans for peace," adding that "unity makes us strong, while division errors and destroys us."

He also read a message from Pope Francisco, which said it was a "grave sin" to attack "against the lives of people who are the same as you, innocent people and children," while asking for heart to be "filled with fraternity, mercy and peace."

Meanwhile the Barcelona City Hall and Catalan Regional Government announced that on Aug. 26, there will be a march through Barcelona to show the city's rejection of terrorism.

The march will be under the banner "No tinc por" (I am not afraid), which is the phrase chanted during Friday's homage to the victims of the attacks held in Plaza Catalunya.

The march will start at 18.00 hours in the Jardines de Gracia in the north of the city and make its way along Paseo de Gracia towards Plaza Catalunya.