the focus has been on dortmund, berlin and a refugee centre near emmerich, just south of the dutch borderavin lee sent us this update from emmerich. this is the building that was at the centre of the main police operation here in west germany this morning, this is emmerich refugee centre, and 100 police officers and special forces, at six o'clock this morning, came here, searched the premises, searched a number of rooms, took one of the migrants away from this refugee centre. he wasn't arrested, we're told, and he came back inside a short time ago. this is where anis amri stayed for a short period, it's a start—up centre for refugees, who stay here for six months. back in 2015, the site manager told me, he suddenly disappeared after a few days. but he recognised his face straightaway when i showed him the mobile footage of the european arrest warrant, he said because so few people stay here, between 16 and 20 people. and some of the migrants said they didn't know him, but they were shocked. they believe, though, there were islamist extremist groups in this area and they weren't surprised

the operations have been carried out in dortmund and emmerich in the west of germany, where anis amrif the main police operation this morning, this is emmerich refuge centre and dozens of officers this morning came here and search the premises, certain number of rooms, took one of the migrants away from this refugee centre. he was not arrested we were told and came back inside a short time ago. this is where anis amri stayed a short time ago, back in 2015, the site manager told me he suddenly disappeared after a few days but he recognised his face straightaway. when i showed him the footage of the european arrest warrant, he said so few people stay here, 16 to 20 people, and some of the migrants said they did not know him, they were shocked, but they believed there were islamist extremist groups in this area and they were not surprised by the fact that he may have had jihadists links somewhere around here. the other sense i get is the local dissatisfaction with this place. there are graffiti swastika signs on the walls, some of the migrants say that was done two months ago by some of

and that permit was issued in the emmerich area of north rhine—westphalia in western germany. 150 policeinvolved in searches there. that's happening now — but we're also learning about the period leading up to the attack. here's christian fraser. the truck, carrying 25 tonnes of steel girders had travelled from poland to this factory in berlin. the driver was 37—year—old lukasz urban, who was later found dead inside the cab. his cousin, who owned the truck company, said they lost co nta ct owned the truck company, said they lost contact with him around apm. he was called yesterday to identify the body. translation: there were stabbed wins on the photo i had been shown. i learnt about the gunshot wounds about the police, who told me that apart from being stabbed, he was also shot. on monday morning, he arrived ahead of schedule at the steel factory in berlin, ready to unload. there was no space and he was asked to come back later. he never returned. a dubious tracker is reported to show that at around 3:45pm, the truck was driven erratically, as if someone was learning to drive it. lukasz