The fighting in Idlib, the last stronghold of rebels and jihadists in Syria, "represents a serious threat to international peace and security," he said.
The European Union "needs to redouble efforts to address this terrible human crisis with all the means at its disposal," said Borrell.
The date of the extraordinary Foreign Affairs Council next week has not been scheduled yet.
Borrell called on everyone involved "to urgently re-engage in a political process." "We also have to continue mobilising resources to reduce the suffering of the civilian population... Humanitarian access needs to be ensured."
"At the same time, we continue to follow closely the migration situation at our external borders. The EU-Turkey Statement needs to be upheld," Borrell said.