A TAP Air Portugal flight from Lisbon to Dublin has declared an emergency after departure from Lisbon, and is presently making a return.
TAP Air Portugal flight TP1324, an Embraer E190-200AR operating a scheduled service from Lisbon (LIS) to Dublin (DUB) has declared a general emergency, squawking 7700 shortly after its departure from Lisbon, Portugal.
The flight is currently making good a return to Lisbon.

The aircraft in question is Embraer E190-200AR registered CS-TTW; a 12 year old aircraft belonging to the carrier TAP Air Portugal.
The flight had departed Humberto Delgado Airport (LIS) at 4.28PM local time and declared an emergency whist still on the climb after takeoff.
The flight is currently negotiating an approach to the departure airport LIS. The nature of the emergency is not known.

Update 17.15 BST
TAP Air Portugal Flight TP1324 now landed RWY 02 at Humberto Delgado Airport (LIS), having made a wide circuit to return from the west after declaring the general emergency.

TAP Air Portugal is the flag carrier airline of Portugal, headquartered at Lisbon Airport which also serves as its hub. TAP – Transportes Aéreos Portugueses presently operates on average 2,500 flights a week to 90 destinations in 34 countries worldwide.
This is a developing story. Please check back for updates.