(JNS) U.S. Special Representative for International Negotiations Jason Greenblatt released a statement and wrote a series of tweets blaming Hamas for “wasting resources” on terrorist infrastructure that could be used to better the lives of Gaza’s residents, and calling for the release of Israeli civilians and IDF soldiers’ bodies that are being held by Hamas.

Greenblatt said in a statement, “I am deeply angered by Hamas’ continued terror activity, including the digging of tunnels that facilitate terrorist activities. Such activities show Hamas’ continued exploitation of the people of Gaza and Hamas’ threats to stability and security in the region.”

“I call upon Hamas to return the IDF soldiers, Hadar Goldin and Oron Shaul, who were taken by Hamas. I also call on Hamas to release the Israeli civilians they are holding—Avraham Abera Mengistu, Hisham al-Sayed and Juma Ibrahim Abu Ghanima. This is a humanitarian issue and Hamas must return all Israelis,” he continued.