RIYADH

An agreement between Qatar and the United States on combating terror funding is "insufficient", the four Arab states that imposed sanctions on the emirate said in a joint statement Tuesday.

The memorandum of understanding announced in Doha during a visit by US Secretary of State Rex Tillerson is "the result of pressure and repeated calls over the past years by the four states and their partners upon Qatar to stop supporting terrorism," said Saudi Arabia, Bahrain, Egypt and the United Arab Emirates.

"This step is insufficient," said the statement carried by Saudi state news agency SPA, adding that the four states would "carefully monitor the seriousness of Qatari authorities in combating all forms of financing, supporting and harbouring terrorism."

The statement said commitments made by Qatari authorities "cannot be trusted," citing previous agreements that have allegedly not been honoured.

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