Cocaine has reportedly been found at St Mary’s hospital in London, days before Kate Middleton gives birth to her second child.
Traces of the Class-A drug were found on a cistern during tests.
A spokesman for Imperial College Healthcare NHS Trust said on the matter: “We take the safety of our patients and staff extremely seriously.
“We have 24/7 security cover at all our hospitals with regular patrols and CCTV covering key areas both outside and inside buildings, constantly monitored by our security teams.
“We work closely with police to investigate reports thoroughly and take action to ensure the safety of our colleagues, patients and their families.
“If there are signs that a person is abusing substances on one of our sites we will take immediate action to address this.”
Kensington Palace told the Mirror that the case was “a matter for the hospital”.
The reports come as the country awaits the birth of the Duke and Duchess of Cambridge’s second child.
The couple are already parents to son George who was born at the same hospital back in 2013.
Earlier this week Kate and Wills celebrated their fourth wedding anniversary just as the Duchess allegedly passed her due date.