There was no firing or hostile action by any side during the incident which occurred between 9.45 am and 10 am, they said
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According to laid down norms by both the sides, rotary wing aircraft should not come within one kilometre of the LoC and fixed-wing aircraft should not be within 10 km of it.
The helicopter later went back, the sources said, adding although it was not a violation of airspace, but it was a breach of an understanding between the two sides.
The sources indicated that the matter will be taken up with the Pakistani side.