Story highlights An inquiry allows the court to review evidence and determine whether to file charges

The U.S. calls for negotiations between Palestinian, Israeli officials

(CNN) The International Criminal Court opened an inquiry into attacks in Palestinian territories, paving the way for possible war crimes investigation against Israelis.

In doing so, they officially become ICC members on April 1, giving the court jurisdiction over alleged crimes in Palestinian territories.

While a preliminary examination is not a formal investigation, it allows the court to review evidence and determine whether to investigate suspects on both sides.

"There are no timelines provided in the Rome Statute for a decision on a preliminary examination," the ICC said in a statement.

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