GENEVA, May 26 (Reuters) - The U.N. mediator of Syrian peace talks will announce the date for a new round of talks later on Thursday after consulting the U.N. Security Council, despite the continuing violence on the ground, he told reporters in Geneva.

"There is a sense of urgency in having the talks resume, because we need to keep the momentum," U.N. Syria envoy Staffan de Mistura said.

"I'm not in a position now to tell you when they will be announced, but I am going be in a position of doing so after I have briefed and consulted the Security Council this afternoon."

(Reporting by Tom Miles; Editing by Toby Chopra) ((tom.miles@thomsonreuters.com; +41 22 733 38 31; Reuters Messaging: tom.miles.reuters.com@reuters.net))