Williams' publicist, Mara Buxbaum, said Williams had been "battling severe depression of late," according to the Los Angeles Times.
A group of 29 state attorneys general is asking the Food and Drug Administration to tighten their regulation of electronic cigarettes.
As the Obama administration says the number of unaccompanied minors crossing the Southwest border is declining, the White House is being urged to stop fast-tracking their deportation hearings.
Russia and Ukraine are holding large military exercises along their shared border as the Ukrainian military claims to be closing in on rebel strongholds in Donetsk and Luhansk, NPR's Karoun Demirjian reports from Moscow.
Air travel in some of eastern China's busiest airports has slowed to a crawl over the past week or so, stranding thousands of travelers and igniting debate about the increasing competition between military and civilian flights for the country's airspace.
The State Department on Wednesday announced it was revoking visas for a number of Venezuelan government officials the U.S. says have violated the human rights of the Venezuelan people.
Handing Gov. Scott Walker an important election-year victory, the Wisconsin Supreme court on Thursday upheld a controversial labor law championed by the Republican governor.
Perhaps signaling a widening of its offensive in Gaza, Israel called up 16,000 reservists on Thursday. That means Israel has activated 86,000 reservists since the conflict started.
The nation's biggest comic book convention has issued a cease-and-desist letter to the nation's third-biggest comic book convention over the use of the name "Comic Con."
Lawmakers in Washington, D.C., have reached a deal to overhaul the embattled Department of Veterans Affairs, multiple news organizations are reporting.