For diplomas awarded in non-EU countries, a NARIC recognition is required: https://www.enic-naric.net/

If you have a diploma recognised in an EU Member State, you don’t need NARIC recognition for your lower level diploma(s). Example: If you have a Bachelor’s degree from a university outside the EU, and a Master’s degree from an EU university, you don’t need NARIC recognition for the Bachelor’s degree.

Qualifications/diplomas awarded until 31/12/2020 in the United Kingdom are accepted without further recognition. For diplomas awarded after this date (from 01/01/2021), a NARIC recognition is required.