Hezbollah admits Israel dealt a severe blow with exploding pagers and walkie talkies, but neither side seems to heed U.S. calls to avoid a wider war.

The absence of a full-blown war in Lebanon has been touted as a core U.S. achievement, but now Washington’s grip on the crisis appears more tenuous than ever.

Lebanon and Hezbollah have blamed Israel for the attacks on Tuesday and Wednesday that killed 37 people and wounded around 3,000, although Israel has not directly commented on the attacks, which security sources say were probably carried out by its Mossad spy agency.

Days after the attacks on Hezbollah with exploding electronic devices across Lebanon, Israel has struck a suburb of Beirut.

The leader of Hezbollah vowed to retaliate for this week’s deadly attacks on the group’s communications devices

U.S., U.K. and United Nations officials urged restraint as tensions ramped up between Israel and Hezbollah in Lebanon. After days of escalating conflict, Israel carried out extensive airstrikes targeting Southern Lebanon on Sept.