WASHINGTON (Reuters) - Secretary of State John Kerry on Monday, in a forceful statement, said all nations must stand up for accountability on the use of chemical weapons in Syria.

The information so far, including videos and accounts from the ground, indicate "that chemical weapons were used in Syria. Moreover, we know that the Syrian regime maintains custody of these chemical weapons," Kerry said.

(Reporting by Paul Eckert, Susan Cornwell, Tabassum Zakaria; Editing by Sandra Maler)