Chinese and US officials meeting in Washington on Wednesday, the first day of a two-day bilateral cybersecurity dialogue, agreed to expand their collaboration, according to Chinese officials.

Chinese State Councilor and Minister of Public Security Guo Shengkun joined US Attorney General Loretta Lynch and Secretary of Homeland Security Jeh Johnson in co-chairing the third China-US High-Level Joint Dialogue on Cybercrime and Related Issues.

The two sides also agreed to crack down on cybercrimes and improve their hotline mechanism, as well as their cyber counterterrorism cooperation and information sharing, according to the Chinese delegation.