 In the February 2014 Swiss immigration referendum, a federal popular initiative "against mass immigration", Swiss voters narrowly approved measures limiting the freedom of movement of foreign citizens to Switzerland.The European Commission said it would have to examine the implications of the result on EU–Swiss relations.Due to the refusal of Switzerland to grant Croatia free movement of persons, the EU accepted Switzerland's access to the Erasmus+ student mobility program only as a "partner country", as opposed to a "programme country", and the EU froze negotiations on access to the EU electricity market.