EU foreign policy chief
Kaja Kallas called on Israel to investigate the incident and hold those responsible "accountable".
"Any threats on diplomats' lives are unacceptable," Kallas told journalists in Brussels.
Berlin "strongly condemned" the firing of shots during the visit to Jenin by foreign diplomats, including one from Germany.
"The Israeli government must promptly investigate the circumstances," a foreign ministry spokeswoman said, adding that Foreign Minister Johann Wadephul would also raise the issue of the "unprovoked shooting" with his Israeli counterpart.
Ireland's deputy prime minister Simon Harris condemned the incident as "completely unacceptable". The diplomatic delegation in the West Bank included two Irish envoys.
"I am shocked and appalled at reports that the IDF fired shots in the vicinity of a visit to Jenin today by a group of diplomats, including two Irish diplomats based in Ramallah," Harris said in a statement.