Search and rescue efforts

In this photo released by Government Spokesman Office, Richard Harris, left, an Australian member of the Thai cave rescue team, shakes hands with Thailand's Prime Minister Prayuth Chan-ocha after receiving the Member of the Most Admirable Order of the Direkgunabhorn during the royal decoration ceremony at the Royal Thai Government House in Bangkok, Thailand, Friday, April 19, 2019. Two Australian doctors, Harris and Craig Challen, received royal honors for helping rescue the Wild Boars soccer team from a flooded cave (Government Spokesman Office via AP)

This undated image made from video, shows a sign on dingo on Fraser Island, Australia. Rescue personnel said a father fought off several dingoes to save his 14-month-old son from one of the wild dogs that was dragging the boy from their campervan on an Australian island early Friday, April 19, 2019. (Australian Broadcasting Corporation via AP)

A fire fighter makes his way on a balcony of Notre Dame cathedral Wednesday, April 17, 2019 in Paris. French President Emmanuel Macron ratcheted up the pressure by setting a five-year deadline to restore the 12th-century landmark. (AP Photo/Francois Mori)

FILE - In this Thursday, June. 15, 2017 file photo, migrants and refugees react at the rescue vessel Golfo Azzurro after being rescued by Spanish NGO Proactiva Open Arms workers in the Mediterranean Sea, about 18 miles north of Sabratha, Libya. Spanish aid groups say Spain is allowing them to deliver aid supplies to refugee camps in Greek islands, but they face hefty fines if their boats venture into official search and rescue areas in the Central Mediterranean. (AP Photo/Emilio Morenatti, File)

In this Friday, April 12, 2019, photo, a dog sits on an oil rig after being rescued in the Gulf of Thailand. "Survivor" the dog is safely back on land after being found by oil rig workers swimming about 220 kilometers (135 miles) from shore in the Gulf of Thailand. Chevron Thailand worker Vitisak Payalaw posted on Facebook that the dog was sighted last Friday swimming toward the platform. Vitisak says the pup clung to the platform below deck without barking or whimpering. The workers think the dog fell off a fishing trawler. (Vitisak Payalaw via AP)

In this photo provided by the Coast Guard, a Coast Guard Air Station Miami HC-144 Ocean Sentry aircrew takes a photo of a disabled vessel that the aircrew located 130 nautical miles (210 kilometers) off Mexico's Yucatan Peninsula on Sunday, April 14, 2019. The U.S. Coast Guard said it worked with a cruise ship to rescue 23 people adrift for days in the Gulf of Mexico. (Petty Officer 3rd Class Brandon Giles/U.S. Coast Guard via AP)

Firefighters accompany an injured person who was rescued from the rubble of two buildings that collapsed in the Muzema neighborhood, in Rio de Janeiro, Brazil, Friday, April 12, 2019. The collapse came in a western part of the city that was particularly hard hit by heavy rains this week that caused massive flooding. (AP Photo/Leo Correa)

This undated photo, provided in New York, Tuesday April 9, 2019, shows Fire Department of New York firefighter Christopher Slutman. Slutman, a 15-year member of the Fire Dept. of New York, was among three American service members killed by a roadside bomb in Afghanistan on Monday. (Fire Department of New York via AP)

This April 3, 2019 photo shows the Sea-Eye rescue ship in the waters off Libya. The humanitarian ship Sea-Eye with 64 rescued migrants aboard was stuck at sea on Thursday as Italy and Malta refuse it safe harbor as their refusal set the stage for another Mediterranean standoff that can only be resolved if European governments agree to accept the asylum-seekers. (Fabian Heinz/Sea-eye.org via AP)