The PSNI says a substantial amount of material, believed to be fertiliser, has been removed from a van that was stopped by police early this morning in Co Tyrone.
The van was stopped in the Corbally Road area of Fintona village at around 2am.
The material has been taken away for detailed examination.
Two men, aged 33 and 45, who were arrested remain in custody.
A number of families who were evacuated during the security alert have been allowed to return to their homes.