LONDON/ZUG, Switzerland (Reuters) - Facebook's fledgling cryptocurrency faced mounting scrutiny on Tuesday as European central bankers and regulators demanded more detail on the social media giant's Libra project.

LONDON/ZUG, Switzerland, June 25 (Reuters) - Facebook's fledgling cryptocurrency faced mounting scrutiny on Tuesday as European central bankers and regulators demanded more detail on the social media giant's Libra project.

SAN FRANCISCO (Reuters) - Facebook Inc on Tuesday added Canada and Ukraine to the list of countries where advertisers looking to run political ads on its platform must first verify their identity and disclose who paid for the ads.

LONDON, June 25 (Reuters) - Facebook's plan to expand into payments is not expected to be on the agenda of this week's G20 summit in Japan, but the social media giant's intentions could lead regulators to take a closer look at crypto assets, a G20 regulatory group said on Tuesday.

HELSINKI/NEW YORK (Reuters) - About a dozen rural U.S. telecom carriers that depend on Huawei for network gear are in discussions with its biggest rivals, Ericsson and Nokia, to replace their Chinese equipment, sources familiar with the matter said.

TEL AVIV (Reuters) - Hackers broke into the systems of more than a dozen global telecom firms and stole huge amounts of data in a seven-year spying campaign, researchers from a cyber security company said, identifying links to previous Chinese cyber-espionage activities.

TEL AVIV, June 25 (Reuters) - Hackers broke into the systems of more than a dozen global telecom firms and stole huge amounts of data in a seven-year spying campaign, researchers from a cyber security company said, identifying links to previous Chinese cyber-espionage activities.

PARIS (Reuters) - Facebook has agreed to hand over the identification data of French users suspected of hate speech on its platform to judges, France's minister for digital affairs Cedric O said on Tuesday, adding the deal was a world first.

OSLO (Reuters) - A magnetic robot resembling a mini quad bike and a four meter snake-like machine are among the new tools that Norway, Europe's second-largest gas exporter after Russia, says will help cut maintenance time at its gas plants and keep supplies flowing.