Portugal has slid back into more political uncertainty after its third government fell in as many years when Prime Minister Luis Montenegro lost a confidence vote in Parliament.

Portugal's parliament will vote later on Tuesday on a motion of confidence in the minority centre-right government, which looks set to be rejected, triggering the country's third early general election in just over three years.

Portugal’s minority government lost a confidence vote in parliament Tuesday, forcing its resignation and bringing the European Union country’s third general election in three years.