Myanmar's air force is reported to have dropped a bomb in a field on Chinese territory, killing four civilians.
China in response sent fighter jets to their shared border in the Yunnan province.

Myanmar denied dropping the bomb and said Kokang rebels, who have been fighting the Burmese army, may have been behind the attack.

Cuba and the United States have re-established direct telephone communication links for the first time in 15 years.

A coalition of aid agencies has accused the UN Security Council of failing the victims of the conflict in Syria, with the UN accusing the powerful countries on the Security Council of putting their own interests ahead of the need to end the conflict.

Saudi Arabia has recalled its ambassador to Sweden, in an escalating row over Swedish criticism of the country’s human rights record, which saw the Saudis blocking a speech to the Arab League by Swedish Foreign Minister Margot Wallstrom.

"We were informed yesterday [Tuesday] that Saudi Arabia had called back its ambassador," said Swedish foreign ministry spokeswoman Veronica Nordlund.

Police in Myanmar have charged a protest by students who protested against proposed legislation, which they say stifles academic freedom.

Around 100 people were arrested with the police beating students, monks and journalists, according to Reuters.

The US imposed sanctions on Venezuelan officials for their suspected role in human rights abuses, as President Barack Obama declared the situation in the country an "extraordinary threat" to US national security.

At least seven high-ranking military, police and government officials will have assets frozen and will be blocked from doing business with US firms or travel to the country.

White House spokesperson Josh Earnest said the Venezuelan government had tried to distract from "its own actions by blaming the United States or other members of the international community for events inside Venezuela".

Ukraine's President Petro Poroshenko said separatist rebels have withdrawn a significant amount of heavy weapons, in accordance with the ceasefire agreement signed in February.

A UN base was attacked in northern Mali, leaving three people dead and wounding at least 12.

Around 30 rockets struck the base in Kidal and killed one of the UN peacekeepers, with 2 more civilians dying in a nearby camp for Tuareg and Arab nomads.