including some top secret material. the documents first appeared on online platforms, such as twitter, lichan and telegram, as well on the messaging platform discord. the leak reveals information about the deployment and state of ukrainian and russian forces ahead of a ukrainian spring offensive, and appear to outline us training and equipment being provided to ukraine ahead of that offensive. there are also suggestions that ukraine s air force may not be able to withstand more russian attack. may not be able to withstand more russian attacks. other leaked material included intelligence on other countries such as china, israel, and south korea. officials say they do not currently know the source of the leaks. the bbc s barbara plett usher has more. the pentagon says the us is still very much into the finding out phase. we are told this is a serious risk to us national security and a matter of top priority. a number of government agencies are working together to find out how t
but earlier, the white house s john kirby also said this. it does appear that at least in some cases, the information posted online had been altered from what we think would be the original source but there is just no way i could tell you with any granularity how that came to be. with me now to discuss this is the chairman of the house intelligence committee, republican representative mike turner, who received a briefing earlier today on the leaked documents. thank you very much forjoining us back on the programme. what we heard from john kirby saying some of the images indicate they have been altered. what does that tell us about who is behind this leak? i do does that tell us about who is behind this leak? behind this leak? i do not think the behind this leak? i do not think the alteration - behind this leak? i do not. think the alteration doesn t necessarily but there is a way as to the department ofjustice and department of defence are trying to track this down. the