European Union foreign policy chief Josep Borrell has insisted on a two-state solution for Israel and the Palestinian territories, telling Israel it couldn't build peace "only by military means." 

Ahead of talks Monday in Brussels with Israeli and Palestinian top diplomats and EU foreign ministers, Borrell said the humanitarian situation in the Gaza Strip "could not be worse," amid Israel's offensive there against the Hamas militant group, which is designated as a terrorist organization by the EU. 

He also said Palestinian statehood must be something that Israel was willing to work toward.

"Which are the other solutions they have in mind? To make all the Palestinians leave?" Borrell told journalists. 

"From now on, I will not talk about the peace process, but I want a two-state-solution process," he said.