Updated results for the rightwing initiative and compromise version.
The Swiss have voted to tighten regulations on the deportation of criminal foreigners.
Projections issued by the gfs.bern polling institute showed 53 per cent voting in favour of a rightwing initiative. The initiative also appeared to have won the backing of a majority of cantons.
Turnout was higher than usual - at 52 per cent - a sign of how controversial were the issues being voted on.
In a complex nationwide vote on Sunday, the electorate were faced with a choice between a hardline option and a compromise version; or approving or rejecting both proposals.