Portugal's ruling centre-right Democratic Alliance (AD) won a snap parliamentary election on Sunday but again fell short of the majority needed to end a long period of instability as the far-right Chega gained a record share of the vote.

A historic shift to the right has overshadowed the victory of Prime Minister Luís Montenegro's conservatives in Portugal's snap parliamentary election on Sunday. With nearly all votes counted, the far-right party Chega was in a neck-and-neck race for second place with the Socialist Party (PS),