We also went to the demonstration on Friday.
I was very sad because there were many people feeling bad.
I went with my parents and a friend of mine. We were walking hours and hours, there were so many people on the streets it was difficult to get home.
I cannot believe what happened, I had never had an experience like this.
My friends are sad as well, some of them have lost close relatives.
It can be felt on the street and in school.
At home we have been talking about it a lot.
The TV is showing the images and information about what has happened all the time and it makes you feel very sad.
And it is a very upsetting moment for Spain, we are all very stunned by what has happened."
Mar, 14, Madrid
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