involvement in the battle for yemen. they're increasing intelligence sharing with saudi arabia. for two weeks the saudis have been launching airstrikes against houthi rebels who they say are being trained and armed by iran. let's bring in senior international correspondent nic robertson who is live on the border between yemen and saudi arabia. good morning, nic. >> reporter: good morning. this announcement is perhaps the strongest announcement that the saudis continue with this air campaign. just yesterday perhaps a lack of intelligence perhaps a slightly inaccurate weapons systems led to the killing of six children who were in a school that was very close to a military target that the houthis had been using. we also heard from a southern separatist commander who is essentially on the same side as the saudis here fighting the houthis that they had hit 20 of his tanks. that he said was because of a