World News Update, What you need to know

The EU's 28 member states will hold a "decisive" summit on the Greek debt crisis Sunday, Italian Prime Minister Matteo Renzi said after an emergency eurozone leaders meeting finished without a deal.

ELSEWHERE:

LONDON - Britons have laid flowers at the sites of the 2005 London suicide bombings and held a nationwide minute of silence for the 52 victims on the tenth anniversary of the attacks.

VIENNA - Global powers wrestling for a historic nuclear deal with Iran gave themselves yet more time Tuesday after foreign ministers failed to bridge what one diplomat called "very, very, very tough" remaining issues.

WASHINGTON - South Carolina prosecutors have announced additional charges against a 21-year-old white supremacist accused of killing nine blacks in an historic Charleston church.

PARIS - At least 150 detonators and a stock of plastic explosives have been stolen from a military base in F France, triggering immediate probes into a theft that has authorities on high alert.

QUITO, Ecuador - Pope Francis has warned against the "temptation" of "single leaderships" in front of nearly one million people at an outdoor mass in Ecuador's capital, recently rocked by anti-government protests.