Israel did not assert or deny responsibility for their deaths.

No one has asserted responsibility for placing the bomb on the plane, and the police have refused to discuss possible suspects.

No group asserted responsibility for the blast at the center, which is partially financed by Washington.

The general denounced the assassination, for which no group has asserted responsibility.

E.T.A. has asserted responsibility for most of the attacks.

Islamic Holy War was one of two groups asserting responsibility for that incident.

The police in Nagasaki said the gunman escaped, and no group or individual immediately asserted responsibility for the shooting.

No one asserted responsibility for the incidents, but it was widely assumed here to be the work of Sinhalese extremists.

No group asserted responsibility for the killing.

In the end, the state must assert its right and responsibility to protect all its citizens.