The Welsh Government have said that they are working with North Wales Police and the military after the plant that produces the Oxford-AstraZeneca vaccine had to be evacuated.
A bomb disposal unit is reported to have visited the site after a suspicious package was discovered there.
First Minister Mark Drakeford said that they were working to ensure the safety of those on the site and the vaccines.
“We are working with local police and the military to find out more about this incident,” he said.
“Thank you to the security personnel who are on-site to protect lives and ensure the safety of our vaccine supply.
“This highlights the vital role they play in keeping us all safe.”
In a statement, Wockhardt UK said: “Wockhardt UK in Wrexham this morning received a suspicious package to site.
“All relevant authorities were immediately notified and engaged.
“Upon expert advice we have partially evacuated the site pending a full investigation.