Hamas was not responsible for the bus bombing in Tel Aviv the group's leader Khaled Mashaal told CNN on Wednesday.
He added, however, that he believed the attack was a response to IAF strikes in Gaza during Operation Pillar of Defense.
The bomb on a central Tel Aviv bus resulted in 28 people being hospitalized on Wednesday morning in the first such attack in the city since 2006.
"Not Hamas, not others, not other people from, not Hamas. No one can announce except those who committed, not me," Hamas told CNN when asked if the group claimed responsibility for the attack.
Mashaal blamed Prime Minister Binyamin Netanyahu for bringing about the attack, "with his crimes, in killing the kids of Gaza, and the continuity of aggression."