Definition: Generate an appropriate title for the given text. The generated title must be short and include the main topic of the text. The preferred titles are under fifteen words.
Input: The arrests were made following a report, at around 21.10 GMT on Saturday, that a group of four boys, aged between 15 and 17, had been attacked in the Ballycolman estate. One of those involved in the alleged attack was armed with a pocket knife, police said. The five assailants made off on foot before the arrests were made. Police arrested the five boys, aged between 16 and 18, when they stopped a bus on the Beltany Road outside Omagh. They have appealed to anyone who was in the area and witnessed the incident at around 21:00 GMT to telephone 101, quoting reference 2043 06/03/21.

Strabane: Five teenage boys arrested following assault