U.S. Senate Majority Leader Chuck Schumer on Monday called on Chinese President Xi Jinping to support Israel after deadly attacks by Hamas, adding he was “disappointed” that Beijing showed “no sympathy” for the country over the weekend.

Fighters from Islamist group Hamas killed 700 Israelis and abducted dozens more as they attacked Israeli towns on Saturday, the deadliest incursion into Israeli territory since Egypt and Syria’s attacks in the Yom Kippur war 50 years ago. Israel responded by pounding Gaza, killing hundreds of Palestinians.

In response, China’s foreign ministry urged in a weekend statement the “relevant parties” to remain calm and to end hostilities to protect civilians, adding that “the fundamental way out of the conflict lies in implementing the two-state solution and establishing an independent State of Palestine”.