Hurricane Michael aftermath: Thousands join recovery efforts as many residents remain missing

As residents pick up the pieces after Hurricane Michael, and teams comb through rubble in search of survivors, authorities say it could be weeks or months before a sense of normalcy returns to storm-ravaged Florida.

In the meantime, residents are doing what they can to restore it. Hiland Park Baptist Church in Panama City sustained some damage in the storm, so the church held its Sunday morning service outside.

"For the last couple of days I've just been walking down the streets, going from house to house," Senior Pastor Steven Kyle told CNN. "And one of the first things that everybody has said is, 'Are we going to have church? Can we have church?'"

"They just wanted the community," he said.

The widespread destruction has left many people living in dire conditions. Residents have been waiting in long lines to collect bottle water and ready-to-eat meals (MREs) at several distribution centers. Helicopters are also airdropping food and water to remote areas.

Some people have resorted to looting.

"This (storm) hit so hard and so fast that the different aspects of human nature is going to come out, and people are going to do anything to survive," Panama City resident Christopher Donahue told CNN affiliate WEAR-TV.

Panama City Fire Department Division Chief Scott Flitcraft told CNN that within three or four hours of the storm's impact, many dollar stores and convenience stores in the area were looted.

Authorities were also investigating reports of a fatal shooting in Panama City, WEAR reported.

As of Sunday, more than 435,000 customers are still without power in seven states from Florida to Virginia. The death toll remains at 18 but authorities say it could continue climbing.