Ruth Sherlock

Updated at 5:41 p.m. ET

Beirut is reeling and Lebanon is in grief after a powerful explosion tore through the capital's port area on Tuesday. The enormous blast, which officials said was driven by thousands of tons of ammonium nitrate, killed at least 135 people and injured thousands more. Emergency crews are still working to find all the victims.

The coronavirus is spreading through government-held areas of Syria at an alarming rate and the authoritarian regime uses a campaign of intimidation to suppress information about the outbreak, a medical worker inside the country says.

With hospitals overwhelmed, staff are treating patients in dirty rooms, without enough medication and with little equipment to protect themselves, one medical worker in the country told NPR.

But talking about it can be dangerous.

In the Yemeni city of Aden, doctors and nurses of Al-Wali Hospital and their families have become patients. With the 75 beds in this private hospital now full, members of the public are being turned away.

"Right now, we can't accept anyone else," said Amr Al-Turkey, a critical care physician in the hospital who is recovering from COVID-19.

Lebanon is reinstating a national stay-at-home order for four days following a spike in the number of reported cases of the coronavirus.

Beginning Wednesday at 7 p.m., residents will be asked to avoid outings except for emergencies.

Speaking to reporters after the Cabinet decision Tuesday afternoon, Information Minister Manal Abdel-Samad said the government would use the four-day shutdown to conduct more tests for the disease and try to trace recent transmissions.

Factories in Syria are producing a drug aggressively promoted by President Trump as a possible "game-changer" in the fight against COVID-19, despite a lack of evidence that it can cure the disease.

Three Syrian pharmaceutical companies are producing hydroxychloroquine, as well as the antibiotic azithromycin — and other drugs that are still being tested — to combat the illness, according to the World Health Organization representative in Syria.

The Gulf countries and Saudi Arabia are struggling to contain the COVID-19 outbreak among migrant worker populations on whose labor the countries rely.

Even amid stringent lockdowns, the disease has continued to spread through migrant communities, with many workers living in cramped labor camps, where they share bunk beds in tightly packed rooms.

In Saudi Arabia, non-Saudi residents comprised 76% of the more than 3,000 new confirmed coronavirus cases this week, according to the country's Health Ministry.