So far, no group has claimed responsibility for the attack.

No one had claimed responsibility for the attack as of tonight.

No one has claimed responsibility for any of these attacks.

By late tonight, no group had claimed responsibility for the attack.

No group or individual has claimed responsibility for the attack.

They have claimed responsibility for several attacks over the last two years.

So someone was claiming responsibility for something in court 73.

No group had claimed responsibility for the attack by tonight.

Do you know any of the others who claimed responsibility?

They claimed responsibility for several attacks on the government in 2004.