The remains of six of the seven passengers who went missing after a helicopter crashed in Hawaii have been found.

The seventh body is presumed dead and authorities will return to the island Saturday to locate the final body.

Poor weather and fog are preventing rescuers from going back to crash seen on Friday.

'There are no indications of survivors,' said Kauai Fire Department Battalion Chief Sol Kanoho.

Hawaiian officials revealed Friday that the seven missing people in the tour helicopter that crashed were from two separate families, while the state's congressman blasted the tour industry for its poor safety record.

News of the wrecked helicopter and missing people on the island of Kauai spread on Thursday after the aircraft was reportedly late arriving back at its home base.

A tour helicopter carrying seven passengers was traveling through one of the most rugged and remote coastlines in Kauai when it failed to return to its home base that evening.

Rescue and search teams began looking for the passengers,including two minors, but have yet to locate any survivors.

Reports say the helicopter was leaving the Waimea Canyon area, known as the 'Grand Canyon of the Pacific,' before the group lost contact.

Rep. Ed Case (pictured) blasted the small aircraft and tour helicopter industry in a press release following the recent crash in Kauai'

Reacting to the crash, Rep. Ed Case of Hawaii on Friday condemned the tour helicopter and small aircraft industry for their apparent failures in safety and regulation.

'Tour helicopter and small aircraft operations are not safe, and innocent lives are paying the price,' Case said in a press release.

Case further cast blame on the Federal Aviation Administration for allegedly ignoring the National Transportation Safety Board's suggestions for safety improvements.

'We know this not only because of repeated fatal accidents and other incidents over the years, but because the National Transportation Safety Board, responsible for analyzing all such accidents, has placed safety improvements for such operations on its highest priority list.

Case: 'Finally, we know that the tour helicopter and small aircraft industry itself is completely incapable of self-regulation'

'We further know that the Federal Aviation Administration, responsible for regulating our nation’s airspace, has not taken the NTSB’s concerns seriously,' he said.

In a final dig against the tour helicopter and small aircraft industry, Case said the industry is 'completely incapable.'

'Finally, we know that the tour helicopter and small aircraft industry itself is completely incapable of self-regulation. In our Hawai’i alone, the industry, while stridently arguing that it is safe and sensitive to neighborhoods, has in fact ignored any sensible safety improvements,' he said.

Case described said the industry ignored 'sensible' safety improvements, increased the volumes of flights despite weather, and entered into 'risky and remote' location at lower altitudes.

This comes after NTSB aviation accident database listed nine crashes helicopter tour crashes in the last 10 years, including three fatalities.

Additionally, a Hawaiian plane crashed and killed 11 people in June and the NTSB called on the FAA to tighten safety regulations on parachute operations.

The FAA said that it had made changes according to NTSB recommendations at the time.

Officials in Kauai' held a press conference on Friday evening to address new information about the crash.

Kauai' officials, Mayor Derek Kawakami (left) and Battalion Chief Solomon Kanoho (right) held a press conference on Friday addressing the helicopter crash

Battalion Chief Solomon Kanoho told reporters that the passengers on the helicopter were two separate families.

'We’re still in the process of notifying family members, but what I can tell you is that there’s two different sets of family members on the aircraft. A party of two and a party of four,' he said.

Authorities could not confirm the identities, ages or genders of the missing persons.

It was also revealed that the helicopter was on the 'the prescribed route that all the tour helicopters are required to fly' and is not believed to have strayed off course.

Hawaiian authorities and other agencies are continuing to search for the missing seven passengers after the helicopter's wreckage was found Friday morning

When asked about the pilot's experience, authorities could not confirm the pilot's flight history or how many hours that person has flown.

Although authorities could not confirm that weather played a role in the crash, Kanoho acknowledged that the island did experience some 'very bad weather conditions' on the day of the crash.

As of Friday, the FAA has restricted a temporary flight restriction on the search area, but other tour helicopters are continuing to fly under specific guidelines.

Hawaii News Now reported, citing multiple sources, that the crashed aircraft was found in a remote area of Nualolo on Kauai.

'Yesterday evening, we got a report of a tour helicopter that had not reported back to its home base,' Mayor Derek Kawakami said in a press conference on Friday.

The United State's Coast Guard Hawaii Pacific has assisted in the search and rescue of the missing passengers

Pictured: The U.S. Coast Guard searched along the Na Pali Coast along the coast of Kauai on Friday

'So we had air and ground operations dispatched. Early this morning we commenced those operations and positively identify the aircraft involved.'

The owner of the helicopter contacted authorities at 6.06pm local time on Thursday, just over 45 minutes after the aircraft was due back from a tour of Kauai's much-visited Na Pali Coast.

The helicopter has an electronic locator but no signals have been received since that time, according to the US Coast Guard.

'There are no signs of the helicopter,' the agency said prior to the tragic conclusion of the search.

This photo provided by the Hawaii Department of Land and Natural Resources shows a Coast Guard search and rescue team looking over Na Pali Coast State Wilderness Park for a tour helicopter that disappeared in Hawaii with seven people aboard

The aircraft was due back from a tour of Kauai's much-visited Na Pali Coast on Thursday evening, but it failed to return

This map shows the approximate location where the wreckage of the tour helicopter carrying six passengers and a pilot was found on Friday

At first light on Friday, the Coast Guard said it was deploying an HC-130 Hercules airplane, an MH-65 Dolphin helicopter from the air, and the Cutter William Hart and a response boat from the sea.

A U.S. Navy Seahawk helicopter and the Kauai National Guard were also involved in the search, along with the Kauai Fire Department, which used its helicopter to search the shoreline and inland canyons.

The search was conducted in high winds, 7-foot waves and scattered rain showers, the Coast Guard said.

The missing helicopter is believed to be owned by the Safari Helicopter Tours, which has been in business for over 30 years

The company uses ASTAR 350 B2-7 helicopters, which sit up to six passengers (pictured)

Helicopter tours are common above the island of Kauai, much of which is a state park.

The missing helicopter is owned by the Safari Helicopter Tours, which has been in business for over 30 years and uses ASTAR 350 B2-7 helicopters, which sit up to six passengers.

According to the company's website, most of Safari's full-time pilots are military veterans, and all are certified by the Federal Aviation Administration.