The MOD has confirmed its Tornado jets have launched their first bombing raids in Syria.
A Ministry Of Defence spokesman confirmed RAF Tornados had returned from their "first offensive operation over Syria and have conducted strikes".
Two more jets from RAF Marham in Norfolk have joined the action this morning.
See RAF video of Tornado jets leaving Cyprus on bombing mission:
Three of the region's Conservative MPs voted against air strikes in Syria although the vast majority were in favour.Read the full story ›
Two more Tornado jets have left RAF Marham this morning for Cyprus.
They'll join those from the base already at RAF Akrotiri.
Tornado fighter bombers have been attacking IS targets in Iraq since September last year when MPs gave the green light for air strikes last night.
An oilfield in eastern Syria was the target of overnight RAF airstrikes, the Defence Secretary, has confirmed.
The Prime Minister says the government's review of defence spending is good news for RAF Marham in Norfolk.
David Cameron has announced £12 billion for military equipment in a Strategic Defence and Security Review. The SDSR set out heavily-trailed plans for two new Army 5,000-strong "strike brigades" capable of deploying rapidly around the world.
RAF Marham is the home to the Tornado force and the future home of the Lightning II Joint Strike Fighter.
The Prime Minister said the additional defence spending would mean more Lightning aircraft, more quickly. He was answering a question in the House of Commons from the North West Norfolk MP Henry Bellingham.
"Will the Prime Minister confirm that today’s statement is good news for RAF Marham, the home of the Tornado force and the future home of Lightning II?
Obviously the Tornadoes and Brimstone missiles are playing a vital role in the campaign against Daesh, but does he agree that there is now an overwhelming case for extending those strikes into Syria itself?"
Servicemen and women from RAF Marham have returned home following their final operation in Afghanistan.
The force has been there since July 2009 and in that time has played an important role in coalition combat missions.
The final ground troops pulled out of Camp Bastion in Helmand province last month.
As the Tornado jets flew into West Norfolk, family of the 170 ground and air crew were there to meet them.
Tanya Mercer reports
Families and pets were reunited at RAF Marham as Tornado bomber pilots returned home from serving in Afghanistan.Read the full story ›
Servicemen and women from RAF Marham who have been supporting NATO operations in Afghanistan have arrived home.
The Tornado jets landed at their West Norfolk base where the crew's family were waiting to meet them.
In total, 170 servicemen and women, including ground crew, are returning.
For more on the squadron's return home, watch Sunday evening's ITV News Anglia at 6.30pm.
Tornado GR4s from RAF Marham in Norfolk have left Afghanistan and are heading back to the UK after more than five years of operations in the country.
The fast jets, from 31 Squadron based at RAF Marham flew out of Kandahar airfield early this morning having flown their final missions.
Aircrew and ground crew from the squadron have provided vital support to NATO efforts in the country since they took over from RAF Harriers in June 2009.
During its time in Afghanistan, the Tornado GR4 has provided vital information about enemy activity on the ground, using the Litening III and RAPTOR reconnaissance pods to spot potential hazards such as roadside bombs.
The jets have also provided close air support deterring enemy forces by flying low and fast over their location or striking important targets with precision when necessary to do so.
The Tornado remains the fast jet workhorse of the RAF and has performed superbly over many years in Afghanistan, supplying life saving intelligence and precision weapons in support of our mission there.
The whole Tornado force should be proud or their work and I pay tribute to their professionalism.
Air and ground crew will now make their way via RAF Akrotiri, Cyprus, to RAF Marham where they will be welcomed home by friends and family.
RAF reconnaissance aircraft from Norfolk have begun flying missions over Iraq.
Six Tornado warplanes from Marham near King's Lynn have been sent to the British airbase at Akrotiri in Cyprus.
They've been flying surveillance missions over Northern Iraq to pinpoint the location of refugees in need of relief supplies as they flee from extremist forces who've forced them to leave their homes.
Tornado jets from RAF Marham have this afternoon left their West Norfolk base as they prepare to help with the aid effort in Northern Iraq.
Thousands of people were left stranded as they tried to escape Islamic militants.
The Marham airmen have flown to RAF Akrotiri in Cyprus and will carry out surveillance ahead of aid drops to refugees being carried out by cargo planes.