Airspace has been disrupted in Scotland at Glasgow Prestwick airport, it has been reported this morning.
According to NATS, the UK's traffic control service, the outage is due to due to a radar failure.
"Our engineers are continuing to investigate the issue at our Prestwick centre in Scotland," said NATS in a statement.
"Airports south of Manchester are broadly unaffected, however flights heading north and flights departing Scottish airports are currently subject to some delay.
"Passengers should check with their airlines. This is unrelated to the issue two weeks ago. We apologise for the disruption."
