Simple:
* The phone call was interrupted by a sudden power outage.
* Our peaceful picnic was interrupted by a swarm of bees.
More complex:
* The speaker's passionate speech was interrupted by a chorus of hecklers.
* Her train of thought was interrupted by the urgent knock at the door.
* The artist's meticulous work was interrupted by the sudden need to attend to her sick child.
In different tenses:
* I was interrupted in the middle of writing my essay.
* The meeting interrupted our usual afternoon routine.
* The rain interrupted the game, forcing the players to take shelter.
With different parts of speech:
* The interruption of the electricity caused a major inconvenience.
* He was interrupted several times during his presentation.
* She found the constant interruptions very distracting.
You can also use the word "interrupt" as a verb:
* Please don't interrupt me while I'm working.
* She interrupted the conversation to ask a question.