With the departure of police escorts following Israeli strikes, criminal gangs are increasingly targeting the convoys, said David Satterfield, the Biden administration’s special Middle East envoy for humanitarian issues. He said the lawlessness as well as regular Israeli protests at crossing points by those opposed to aid going into Gaza have disrupted delivery and distribution.

“We are working with the Israeli government, the Israeli military in seeing what solutions can be found here because everyone wants to see the assistance continue,” Satterfield told the Carnegie Endowment for International Peace on Friday. A solution “is going to require some form of security escorts to return.”

Satterfield said that Israeli officials have not presented “specific evidence of diversion or theft” of U.N. assistance, but that the militants have their own interests in using “other channels of assistance … to shape where and to whom assistance goes.”