The devices were found in a McDonald's outlet
Two fire bombs have been found in a baby-changing room in a fast food outlet, police have said.
The incendiary devices - one of which had partially exploded - were found in a McDonald's restaurant in Cookstown, County Tyrone.
Police Inspector Sue Steen said the people who had left the devices in the room has shown "a callous disregard for human life".
"That room was in a restaurant used by families and children," she said.
"It doesn't bear thinking about what might have happened if the restaurant had been filled with people, or someone was in the room with a baby when they went off," she said.
"It is not enough to say that those who planted the devices have nothing to offer the people of Northern Ireland.
"They do - but it is a return to a past of injury, death and destruction, nothing else. They must be caught and brought before the courts."
Staff in McDonald's found the devices on Wednesday, sparking a security alert on Sweep Road, causing major traffic disruption.
Police said that very little damage was caused in the incident.
Police are investigating whether the devices are linked to a similar attack on a toy store in the town two weeks ago and have appealed for information.
A partially exploded device was found in the Toymaster store on Dungannon Road on 9 May. It had been hidden in a fast food container.