Meet Johan Thyr at the Ukrainian border in the video and hear him tell about the patients he met.
We meet Johan in the Polish border town of Medyka.
The day before, he had driven a disabled Ukrainian boy from Kharkiv in eastern Ukraine to safety in Poland.
- He can not move his arms and legs and must be tube-fed.
There were huge queues at the gas stations and I thought we would stay with the poor boy.
I get nervous at the thought of having to spend the night in the ambulance, says Johan Thyr.
When the war broke out, Johan contacted the charity Dalahjälpen, which was in place in Ukraine.
He went down as a volunteer and since then he has remained.
Driving of necessities gradually turned into driving ambulances at the front of the war.
"Being blunted"
- It was a stressful feeling in the beginning.
Very crying children and people with all their belongings in their hands.
But after a while you get blunted, says Johan Thyr.
Johan is part of a team of volunteers from all over the world.
They are completely dependent on donations to continue their work.
- Unfortunately, donations have decreased.
We can no longer afford to travel the really long distances because it wears too much on the cars and costs too much in petrol.
Drove body bags to Butja
Johan arrived in the city of Butja outside Kyiv after Russian troops withdrew and dead civilian bodies were found on the streets.
In the luggage were 500 empty body bags.
- The bodies had been moved from the streets when we arrived, but it was our body bags that were used to gather the bodies.
Sometimes you can forget what really happens but then you are reminded, says Johan Thyr.