BBC: Cartoonist Ali Dorani fled Iran at the age of 21 before becoming trapped in Australia's controversial Manus Island detention camp for four years - but things changed after his artwork was posted online. Here's his story - in his own words and drawings.

In 2013, I left Iran. I can't tell you why because it might affect my family's safety - but I knew my life was in danger.

I stayed in Indonesia for 40 days, and tried to get to Australia - I knew Australia was the best way for me to get to safety.

A people smuggler told me he could get us to Australia by boat.

When I saw the boat, I was afraid I would die. It was a fishing boat, not really well maintained, and there were about 150 of us. And I can't swim.

When the time came to get on the boat, I told myself: "This is it. If anything happens to that weak boat, I'm going to die."

The journey took us 52 hours - it was raining and the ocean wasn't normal. It was so scary.

The Australian navy intercepted us and took us to Christmas Island - a detention centre where Australia keeps asylum seekers who arrive by boat.

I had suffered from OCD [Obsessive Compulsive Disorder] for a number of years - but it got worse on Christmas Island.

I liked to keep my surroundings clean at all times - but I couldn't control it anymore because I was in a room with several other people.

At one point, I tried to wash my dictionary in the shower because I felt it was dirty. I kept telling myself I was going crazy - I was shaking and getting so nervous.

Doctors at the medical centre told me I had to take medication, or find some strategies to deal with my OCD.

I didn't want to take medication because I was worried the Australian government would call me crazy and blacklist me from entering.

But when I went back to my room I slowly remembered that I had a talent for drawing. So I started drawing again to deal with my OCD.

I've been drawing since I was five years old - it's one of my earliest memories.

I'd stopped a few years before I fled Iran, because I was so busy with work and life - but now I felt so sick that I started drawing again.

I didn't always have something to draw on. We could request materials from immigration officers, but they wouldn't always give us paper and pencils.

So I had to steal paper - I'd go into language classes, and take blank papers when the teacher was looking the other way.

Because I only had a limited supply of paper I couldn't make mistakes in my drawings - that also helped me improve my skills.

Drawing actually didn't help my OCD, which was still getting worse every day.

But I started showing my drawings to other detainees, and some of the immigration officers, and people got interested in my cartoons.

I drew about my life there - what happened when I lined up to get food, what it was like using dirty public toilets.

I remember the first time I realised people took my work seriously.

I drew a map of Australia on a white T-shirt, with two eyes crying, and the words "I am only a refugee" >>>