In the shadow of the war in Gaza, conflict in the Israeli-occupied West Bank has intensified with Palestinian attackers carrying out bolder and more sophisticated assaults as the Israeli military increases the scope of its raids on Palestinian cities.

A shooting by a Jordanian citizen that killed three Israelis on Sunday at a heavily fortified West Bank border crossing came after three recent attempts by Palestinian militants, including from Hamas, to set off car bombs in the territory.

Last month, Hamas and its ally, Palestinian Islamic Jihad, claimed an attempted suicide bombing in Tel Aviv in which the Israeli police said the assailant had come from the West Bank. Less than two weeks later, a drive-by shooting killed three Israeli police officers in the southern West Bank.

Taken together, the violence constitutes the most complex sequence of attacks relating to the volatile West Bank in years, according to analysts.

While Sunday’s border attack was considered the act of a lone individual with unclear intentions, the other episodes suggest that militant groups have developed new technical, logistical and organizational abilities despite expansive Israeli efforts to contain their insurgency, the analysts said.

“If you compare what’s been happening in recent weeks to what was happening over the past decade, you can see a more organized effort to carry out attacks,” said Ibrahim Dalalsha, the director of the Horizon Center, a research group based in Ramallah, in the West Bank.