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Every year, millions of people visit Grand Canyon National Park in Arizona, and incidents, some resulting in tragedies, happen from time to time.
Here's a look at some of the incidents that have happened in the area in recent years.
Here is information from Grand Canyon National Park on how to stay safe while visiting.
Virginia man dies while hiking Grand Canyon trail
A man from Virginia died while hiking in the Grand Canyon. National Park Service officials say they received an emergency call just before 2 p.m. on Sept. 9 of a hiker in distress on the North Kaibab Trail one mile south of Cottonwood Campground.
Hiker dies amid extreme heat in Grand Canyon
Officials say a 57-year-old woman died while hiking in the Grand Canyon last weekend.
Man falls more than 4,000 feet from Grand Canyon skywalk to his death
A 33-year-old man has died after he plummeted from the Grand Canyon's skywalk attraction, according to the Mohave County Sheriff's Office.
Hiker dies in Grand Canyon National Park during an attempt at a difficult trek, NPS says
The National Park Service says a woman who was attempting to hike to the Colorado River and back in a day was found dead in Grand Canyon National Park.
Wisconsin man dies while hiking Grand Canyon trail
A man from Wisconsin died while hiking on a trail in the Grand Canyon, officials said.
7 hurt when Grand Canyon tour helicopter makes hard landing
The pilot and six passengers were taken to hospitals in Las Vegas and suburban Henderson for treatment of injuries that Boulder City spokesperson Lisa LaPlante called not life-threatening.
Grand Canyon National Park motorboat incident on Colorado River leaves 1 dead, multiple injured
The Grand Canyon National Park Service received a report of a flipped motorboat on the Colorado River at Bedrock Rapid in Arizona.
Arizona woman dies while backpacking in Grand Canyon
The Grand Canyon National Park Service says Delphine Martinez, a resident of Window Rock, was on a multi-day backpacking trip on Sept. 4 when she was found unconscious along the Thunder River Trail, about one mile from the confluence of Tapeats Creek and the Colorado River.
Man found dead in Grand Canyon after falling 200 feet from North Rim
The 44-year-old visitor had reportedly fallen 200 feet from the rim west of Bright Angel Trail.
Canadian woman dies while hiking out of Grand Canyon
The victim was identified as 41-year-old Melanie Goodine from Ottawa, Ontario. Officials say she was hiking out of the Grand Canyon after hiking to the Colorado River earlier in the day.
Grand Canyon visitor falls 20-feet to her death, park officials say
A woman visiting the Grand Canyon from Utah was killed when she suffered a 20-foot fall on April 4, says the National Park Service.
Colorado woman dies during boating trip at Grand Canyon
Mary Kelley, a 68-year-old woman from Steamboat Springs, Colorado, entered the river at the top of Hance Rapid. Members of her group pulled her out of the water, discovered she was unresponsive and began CPR.
Scottsdale man found dead in Grand Canyon
During an aerial search, the body of 57-year-old Ralph Stoll was found between Yuma Point and Dripping Springs.
Body of Hungarian man missing since July recovered in Grand Canyon
Gabor Berczi-Tomcsanyi, 45, is a Hungarian national who was believed to have visited the South Rim on or around July 19. His body was recovered Monday approximately 430 feet below the rim.
NPS: Multiple people struck by lightning during monsoon storm at Grand Canyon
Officials say lightning strikes an average of 25,000 times per year in Grand Canyon National Park.
Hiker dies on Bright Angel Trail in Grand Canyon
The victim became unresponsive near Mile-and-Half Resthouse after returning from a day trip to Plateau Point. Witnesses at the scene performed CPR until rescue crews arrived. The victim was pronounced dead at the scene.
Louisiana man dies while hiking Bright Angel Trail in Grand Canyon
Rodney Hatfield, from Washington, Louisiana, had reportedly been on a multi-day hiking trip and was returning from Phantom Ranch when he started having trouble hiking up Bright Angel Trail.
Ohio woman dies from suspected heat-related illness while backpacking in Grand Canyon National Park
A spokeswoman for the Grand Canyon National Park said it has recently seen an uptick in heat-related illness.
Illinois man found dead on South Kaibab Trail at Grand Canyon National Park
A hiker has died on the South Kaibab Trailhead at Grand Canyon National Park, park officials say.
Ohio woman dies backpacking Grand Canyon; possibly heat-related
A backpacker has died on the Tonto Trail at Grand Canyon National Park, park officials say. The death could be heat-related.
Colorado man dies during boating trip at Grand Canyon
Sixty-three-year-old James Crocker of Lakewood, Colorado was on a multi-day private boating trip when he was pulled from the water by other members of his group.