Spanish first female Defence Minister Chacon, a leadership contender for Socialist party's main opposition, died at the age of 46, possibly from a heart disease.
Pope Francis condemned bombings at Egyptian churches during Palm Sunday Mass and stated that the world was suffering from terrorism, wars and weapons that are ready to strike.
Saudi Finance Minister al-Jadaan stated that local citizens and Saudi Arabia's companies would not pay income tax even under the introduction of sweeping economic reforms.
On Sunday, tens of thousands of Hungarian citizens in central Budapest protested against a new bill that could force Soros-founded Central European University to move out of Hungary.
Six people died and at least 100 people were injured, after police clashed with separatist factions' protesters during the by-election in Kashmir region.
According to the Russian embassy in Madrid, Russian computer programmer Levashov, accused of interference in the US election, has been arrested in Barcelona.
Egyptian President al-Sisi ordered the armed forces troop deployment across the country, after bomb attack at two Coptic churches killed 43 civilians.
The death toll rose to 43 people amid bomb attacks on Egyptian Coptic churches in Tanta and Alexandria, which included the historic seat of the Coptic Pope.
Norway's security forces raised the national threat level, after police discovered an explosive device in Oslo. A young Russian citizen was detained as a suspect in the case.
The Islamic State claimed responsibility of two church attacks in Egypt that killed as many as 36 and injured more than 100 people.
The US Secretary of State Rex Tillerson blamed Russia's inaction for helping stir up a deadly poison gas attack against Syrian civilians, adding that Moscow failed to live up to its commitment under the 2013 agreement to destroy chemical weapons in Syria.
The Russian President Vladimir Putin and Iran's President Hassan Rouhani said in a phone conversation that aggressive US actions against Syria violated international law, adding that both countries were ready to strengthen cooperation to combat terrorism.
The Iranian President Hassan Rouhani condemned a US missile strike on a Syrian air base and criticised Gulf Arab countries for supporting it. Rouhani urged an impartial probe into chemical weapons attack in Syria, which killed 70 people.
The Russian Foreign Ministry said that the cancelled visit of the UK Foreign Secretary Boris Johnson to Russia demonstrated a lack of knowledge or misunderstanding of the events in Syria.
The Greek Prime Minister said that Greece would implement additional austerity measures on condition of further debt relief that would enable the country to be included in the ECB's bond-buying scheme.
The US Ambassador to the UN Nikki Haley said that the regime change in Syria was one of the Trump administration's top priorities in the country wracked by civil war.
The Russian Foreign Minister Sergei Lavrov and the US Secretary of State Rex Tillerson discussed by phone the situation in Syria after the US strikes on a Syrian air base.
As many as 25 people were killed and at least 70 were injured after a bomb exploded in a Coptic church in Egypt's Nile Delta, the latest attack in a series of assaults on Egypt's Christian minority.
The Swedish police questioned seven people over a terror attack, in which a hijacked truck crashed into a department store in central Stockholm, killing four people.
The Iranian security body still reviews the Iran Petroleum Contract model. In January, Iran chose 29 companies as being allowed to claim to oil and gas projects under the IPC, which Tehran hopes will underpin production.
The Norwegian police conducted a controlled explosion of a bomb-like device in Oslo on Sunday and detained a suspect, but declined to provide information on his identity.
Turkey confirmed its commitment to a ceasefire in Syria, but urged Russia to stop insisting that Bashar al-Assad should remain as a leader of the country, the Turkish Foreign Minister said.
The Indonesian police killed six suspected Islamic State terrorists in Indonesia's East Java province on Saturday.
The chief of China's insurance regulator Xiang Junbo is under probe for suspected disciplinary violations, said anti-corruption authority on Sunday.