1.   It was not immediately known which group the arrested persons were connected with.

2.   It was not immediately known which group the two militants holed up in the mosque belonged to, Bhullar said.

3.   It was not yet known which group fired on the observation post, he said.

4.   It was not yet known which group fired on the observation post.

5.   It was not immediately known what group the two had belonged to.