A baby boy was found abandoned in a stroller at a station after his parents reportedly forgot the six-month-old whilst he was asleep.

The blunder happened on Tuesday evening at the Cacilhas South Terminal in Almada, south of the Portuguese capital, Lisbon.

Around 7.15pm a passerby noticed a stroller left abandoned at the station with no adults nearby, which led them to call the police, local media Correio da Manha reports.

Officers rushed to the scene and found the baby boy alone but safe and immediately carried out enquiries to find the parents.

One witness described seeing a baby crying 'in a police officer's arms' as a moment that 'really stuck with me and one I'll never forget'.