A driver in America made it to hospital while suffering a pulmonary embolism after putting his car into autopilot.
Pulmonary embolism is a blockage in one of the pulmonary arteries in your lungs. In most cases, pulmonary embolism is caused by blood clots that travel to the lungs from other parts of the body.
According to Slate, Joshua Neally, 37, was driving his Tesla Model X home from his office in the US city of Springfield, Missouri, to nearby Branson.
But after pulling onto the highway, he started suffering piercing pain in his stomach and chest.
Rather than call an ambulance, the lawyer decided to find a hospital using his car's self-driving mode.
Around 20 miles (32km) down the road, the Tesla arrived at the road leading to the hospital emergency department.
He told Slate that he manually steered the electric vehicle in to the car park and checked himself in to the emergency room.
Doctors say he was lucky to survive it while driving.
Tesla's autopilot, which automatically changes lanes and reacts to traffic, is under the microscope in America after it was involved in two crashes.
"I'm very thankful I had it for this experience," Joshua told local news station KY3.
"If something like that happens where I become unconscious or incapacitated while I'm driving, I'm not going to cross over the interstate and slam into somebody or slam into one of the big rock walls."
Source: BBC Tech