The tests have not been approved by federal regulators, but that hasn’t stopped patients from wanting them — and doctors from worrying.

© Tony Luong for The New York Times

Officials said they were investigating the blaze in the southwestern state of Goa, a popular tourist destination.

© Ali Monis Naqvi/Reuters

The authorities accused “some foreign media” of smearing the government’s response to a fire at a high-rise complex, saying: “Do not say you have not been warned.”

© Lam Yik Fei for The New York Times

The authorities accused “some foreign media” of smearing the government’s response to a fire at a high-rise complex, saying: “Do not say you have not been warned.”

Hong Kong, with some of the world’s highest housing costs and inequality, must now figure out how to help thousands of residents who lost friends, family and homes.

© Ng Han Guan/Associated Press

An early grid battery was installed in the Atacama Desert in Chile 15 years ago. Now, as prices have tumbled, they are increasingly being used around the world.

Hazardous construction materials, the buildings’ design and a series of safety failures likely enabled the blaze to spread with devastating speed.

The authorities quickly arrested critics demanding accountability, signaling an expansive use of the security law to silence dissent over nonpolitical tragedies.

The authorities said flammable netting and foam boards may have fueled the city’s deadliest blaze in nearly 80 years, killing more than 90 and prompting arrests.

The authorities said flammable netting and foam boards may have fueled the city’s deadliest blaze in nearly 70 years, killing 55 and prompting arrests.

Residents from across the city have quickly organized to donate food, water, clothing and other supplies in Tai Po for the many displaced people.

The battery spontaneously combusted while stored in a luggage in the overhead bin. The airline said there were no injuries.