"The impact with the front left wheel with one of the Alpine caused damage in the water system under the bodywork on the sidepod," Stella said.
"This meant that we had a gradual loss of water pressure and at some stage we saw that temperatures were going out of control, pressure kept reducing, so we needed to retire the car."
Onboard footage appeared to show that Ocon's car was affected by the bumpy Circuit of the Americas track as they went through the corner, resulting in him losing control and making contact with Piastri.
Piastri: Ocon clash was unfortunate
Piastri viewed the incident as a racing-related occurrence, and it's worth noting that Ocon had to retire from the race a few laps earlier as well.
"I didn't really think anything of it to be honest," he said post-race.
"I felt like I definitely had the right to be there, I don't think Esteban did anything untoward. Just we met in the middle and unfortunately, it's caused damage to both."
GPFans is a multi-platform, multi-language brand dedicated to Formula One coverage. We bring you all the ins and outs of the sport, 24/7, everything from up-to-the-minute news and features to the latest viral stories and clips.
We believe that a new generation of exciting, outspoken drivers will make F1 more popular than ever before, and we want to give our users access to as much of their heroes as possible, on and off the track. From Lewis Hamilton to Max Verstappen, Daniel Ricciardo to Sebastian Vettel, we provide in-depth analysis of every every Grand Prix in the season, from Australia to Abu Dhabi.
With Formula One under the new ownership of Liberty Media, how the sport is being covered is evolving, and GPFans will look to be at the heart of this progression into new media, as one of the fastest-growing sites covering the king of motorsports.