The "HAMAS" grouping stated on Friday that it will consider the possibility of mistakes or the encroachment of scud missiles.
They added: "We will investigate all the circumstances surrounding the incident of the victims and the reasons and causes of the explosions and we will work to ascertain the truth as quickly as possible."
One of the rockets, fired from the Gaza Strip into Israel, fell on a house in the Tel Aviv suburb, killing 5 people and wounding 90.
The Israeli government held a meeting with the president of HAMAS in Haifa and representatives of FATAH to discuss the situation.
