Hundreds of North Sea workers have been drug tested after a syringe was found on a platform.
Oil major BP is investigating after the object was found on its ETAP platform last Friday.
Two workers have since been flown back to shore to be further tested after the results of a urine test came back as inconclusive for more robust testing.
A spokeswoman for BP said: “We can confirm that a syringe was found onboard the Safe Caledonia flotel, currently located adjacent to the ETAP platform, on 15th April.
“There are of course a number of medical reasons why a syringe may be required by personnel offshore however, in line with our zero tolerance policy for substance misuse, we have chosen to the take the precautionary step of testing all those onboard.
“BP is a responsible operator and we place the utmost importance on ensuring the safety of all those who work on our platforms, therefore we feel this is an appropriate response.”
A total of 447 workers have been tested since a team was sent out to the platform on Saturday.
Last year, BP made $1billion of investment in the ETAP field.
The cash injection is expected to add 15 years to the project – nearly doubling the site’s lifespan.