All appointments with the police in Norway are cancelled until at least after 15 April (see www.politiet.no for updated information).
It is now not possible to submit applications for visitor's visas abroad. For information about applying for residence permits from abroad, please see www.norway.no and the Visa Application Centre's website, keep in mind that the situation might change quickly.
For information from the UDI, see www.udi.no/corona.