Two people have been arrested by police after masked men hijacked a car at gunpoint and ordered the driver to take the vehicle to Omagh police station.
It is understood a suspicious object was placed in a silver-coloured Volkswagen Golf at around 10pm on Saturday after three masked men stopped the car near St Mary's Church in Drumragh.
The man, who police said was left “badly shaken” was then ordered to take the car to the station where it was abandoned.
This morning, police confirmed that following a search in the Omagh area last night, a 56-year-old man has been arrested.
A further search was carried out in the Strabane area, leading to the arrest of a 29-year-old man.
Both search and arrest operations were carried out under the Terrorism Act. Two vehicles were seized for forensic examination.
The men have been taken to the Serious Crime Suite at Musgrave Police Station to be questioned.
Detective Chief Inspector John Caldwell was shot and seriously injured in a New IRA gun attack at a sports complex on the outskirts of Omagh in February.
It is the second time since last November that the driver of a hijacked car has been ordered to drive to a police station with s suspect device.
A similar attempt to hijack a vehicle in Derry in February was unsuccessful.
People were forced from their homes during the Omagh alert while Mass at St Mary's church was cancelled on Sunday as police searched the grounds.
Fr Eugene Hasson from St Mary's said it "shouldn't be going on at all" and was "very disruptive to people".
British army bomb experts attended the scene and removed the object, which will now be examined "to establish its viability".
Sinn Féin MLA Nicola Brogan said: "There is no place for this type of activity and those responsible have only served to cause huge inconvenience for local families tonight."
West Tyrone DUP MLA Thomas Buchanan said: "My thoughts are with everyone involved but the motorist will never forget this for the rest of their days."
Independent councillor Josephine Deehan linked the alert to the coronation of King Charles in London on Saturday.
"I'm sure it was a terrifying ordeal for those involved, it's something we don't want to see repeated and merits universal condemnation."
Alliance councillor Stephen Donnelly said the incident took place close to his home.
"Omagh refuses to bow to those who would have our lives ruled by fear.
"We never have and we never will."
Inspector Will Brown said the driver was "badly shaken by the ordeal".
Dissident republicans, in particular the New IRA, are believed to have been responsible for a number of attacks and attempted attacks on police in recent months.
In November of last year, a police patrol vehicle sustained damage after being targeted by an explosive device in Strabane, Co Tyrone.
MI5 recently raised the terrorism threat level in Northern Ireland to severe, meaning an attack is highly likely, in response to an upsurge in dissident activity.
In 1998, the Real IRA detonated a car bomb in Omagh, killing 29 people, including a woman pregnant with twins, the worst single atrocity of the Northern Ireland Troubles.
Police have said the investigation into Saturday's hijacking continues and they have appealed for anyone with information to contact them on 101
