Air traffic controllers are threatening to repeat the massive disruption which grounded more than 150 flights in and out of Ireland yesterday.

The country’s three main airports – Dublin, Cork and Shannon – were shut down for up to four hours causing travel misery for around twenty thousands passengers.

The controllers are in dispute with the Aviation Authority over the introduction of new technology and the payment of a 6 per cent pay rise.

The IMPACT trade union is not ruling out a further stoppage if a group of suspended air traffic controllers are not re-instated.

The union’s executive is meeting today to decide its next move.