THAM LUANG CAVE, Thailand — Dozens of soldiers and park rangers lined up at the cave’s mouth, carrying in supplies. Teams of navy divers worked their way through submerged passageways in the flooded cavern. The vigil of family and friends outside echoed across Thailand on social media and television.

On Wednesday, the fifth day of an intense search for a young soccer team and coach trapped by rising waters inside the Tham Luang Cave in northern Thailand, there was still no indication where they were.

But the search, spanning more than a dozen local and national government agencies, continues, along with the hope that they are still alive.

“In whatever part the rescue team and officers play in the mission, I ask them to think of the boys as their own children because they will care so much about them,” the governor of Chiang Rai Province, Narongsak Osottanakorn, told reporters at the scene on Tuesday night. “We won’t abandon them. We are in this fully.”