Fernando Alonso was forced back into the McLaren garage after just a single installation lap this morning, with Honda diagnosing an issue with the engine's oil system.
The problem is apparently located at the front of the V6 hybrid power unit which would require a proper dismantling of the engine in order to further investigate the issue.
"We have an oil systems issue which requires a full investigation," said a Honda spokesperson.
"We plan to run again today, but due to the difficult access location it will take several hours to resolve."
Red Bull's RB13, with Daniel Ricciardo behind the wheel, also had a troublesome debut with the car stopping out on the track after a handful a laps, halted by a benign sensor issue, and bringing the red flag.
Red Bull is expected to rejoin the session shortly however.
GALLERY: F1 drivers' wives and girlfriends
Keep up to date with all the F1 news via Facebook and Twitter
Sauber team representative Alessandro Alunni Bravi has confirmed that Carlos Sainz is at the top…
Esteban Ocon’s tenacious efforts in last weekend’s Miami Grand Prix secured a crucial 10th place…
Jenson Button believes the core of Lando Norris’ racing style will not change following the…
Ford says its commitment to Red Bull’s engine programme remains “unchanged” despite renowned designer Adrian…
Denny Hulme clinched his first Grand Prix win on this day at Monaco in 1967,…
Alpine protégé Abbi Pulling extended her lead in the F1 Academy championship with back-to-back wins…