mohamed val reports. >> one killed by houthi mortar shells is about to be buried. among the objectives of the saudi led air strikes is to stop the conflict in yemen spilling over into saudi arabia. now, there are fears the kingdom may be forced to order a ground invasion. yemen and saudi arabia share a 1800 kilometer border. hundreds of refugees are heading north. this latest wave including yemenis and saudi arabia e-saudi arabiafsaudiarabians. most of these people arrived on foot as they crossed the border there was fresh fighting nearby and fighter jets flew in the opposite direction. >> i'm from sada. i came here seeking a job. there are no jobs in yemen. and the situation is miserable only war and explosions. life there has become difficult. >> translator: we arrived to yemen by sea then we took the road to rada to ta'izz. first we were only 30 then another 20 joined us. i paid the man 500 reales for his service. >> no legality up in the letup in the air campaign. slowly causing them to lose the fight. >> we have targeted a number of caves. they have been conve

. >> mohammed val thanks for the update. >> saudi arabia's month-long air campaign failed to restore the yemen government. and critical threats projected, according to that. it holds more territory than before. the houthis controlled sana after pushing south. they continued the march south. moving into tiaz and closing in on aden. showing the presence on march the 25th the day the saudi-led coalition began. since then they moved south and west. over the past four weeks they increased their control influence and the areas which they can operate in. >> a houthi supporter and activist joins us on the phone from sanaa. good to have you with us. first of all the announcement that the saudi-led coalition is ending operation decisive storm - was that the result of a deal cut between - or involving the houthis. have you, in effect agreed through back channels to a deal with the saudi-led coalition. >> i didn't think there was a deal because the coalition strike continued. i didn't think they would sign a deal. it would give the right for the saudis to continue the strike. that's what they di

let's go jizan, where our correspondent mohammed val violence us live. what do you here about the fighting on the ground. >> fighting is going on in aden there has been heavy bombardment and air tricks on locations and fogses of loyalists and around the city of tiaz. it's an important city it's a populated city. it is again the brigade. brigade 35 that has shifted loyalty to president hardy. his loyalists are making momentum, gapes. the popular resistance in tiaz organised itself in a better way now. the houthis done up yoigs inside the city. there's fighting dreet by treat. in at ep not far from the -- aden not far from the presidential palace there's reports of casualties 35km away from it. the air base is important, and it has shifted several times, changed hands several times during the last couple of months. it is occupied by the houthis, and the supporters of president abd-rabbu mansour hadi, the popular committees are besieged and trying to take it. this base was important and used as a base by americans for their drone strikes in yemen, about 100

. >> we go to mohammed val from the yemeni border. >> reporter: street battles in tiaz a day after the saudi-led coalition announced the end of the first phase of an air campaign in yemen. fighters are loyal to president abd-rabbu mansour hadi. they are supported by soldiers from the 35th brigade. but they are unable to push the houthi rebels, and the soldiers loyal to former president ali abdullah saleh from the city. a similar scene is here, further south in the city of aden. these are members of the hadi popular resistance committee they say fighting continued tuesday night and the early hours of wednesday. in washington, the saudi ambassador to the united states said the situation in aden required continued military action. >> we are seeing movement by the houthis that is very disturbing in the city of aden. where we see squirmishes, and we see movement of houthi troops into aden from three different directions. >> reporter: clashes resumed in other areas. on wednesday, the saudi-led coalition targeted houthis and fighters in tiaz and other areas. the houthis seemed far from being

let's go to mohammed val, in jizan, close to the saudi border. what is the situation. are the air strikes over or what? >> they are not over. hours after the beginning of the supposed renewal of hope i'm talking in two zones. at midnight in open time an air strike began in aden against the houthis, because they moved the tanks to a place which has been just liberated by the popular resistance committees. that's the area on the coastline there. so the saudi-led coalition conducted air strikes to prevent them from reaching those areas which were liberated. in aden another air cycle was conducted, and that's after they have marched on the base on the army brigade, loyal to president abd-rabbu mansour hadi and according to reports they were able to reach brigade head cars. this is a time of things continuing like before. not the same intensity, but this time around, it includes apparently a quicker response and against any houthi attempts to expand the territory in yemen >>> stay there with us, we'll come back in a moment for more. we'll see where we stand for the humanita

. >> mohammed val has been monitoring developments close to the border from jizan, and said the houthi leader's comments were to be expected. >> this is what he has reiterated since the beginning of the war. he has accused saudi arabia of being a country nefarious to the future and presence of yemen, and we have seen that he has tried to drive the wedge between the yemenis and saudi arabia, warning the yemenis that they are a source of danger not a country that would like to take care of yemen. it's interesting to see him lumping america, saudi arabia and al qaeda in one front, that is, according to him, against the yemen interests, and against himself as houthis. the other thing is he sent a message to southern yemen saying "we are not against you, we are not here to how many your interests and believe us. help us, if you stand with us we'll do as we always did, support your cause, and you'll have autonomy. that is dangerous in the ices of some -- eyes of some yemenies, who seek a compromise a kind of pact with the south that if you support us, and breakaway from abd-rabbu mansour had