Suppressing messages

I am getting a lot of messages like this during compilation:

C:\Program Files (x86)\IntelSWTools\compilers_and_libraries_2018\windows\pstl\include\pstl/execution:96: [Parallel STL message]: "The <Parallel STL> execution policies are defined in the namespace pstl::execution"

How can I suppress these as hundreds are appearing?

It doesn't seem to be susceptible to /Qdiag-disable:96 as a compiler option.

I am using Intel Parallel Studio XE 2018 Update 3 in VS 2017.

Thanks