tank in Syrian streets
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Syria attack leaves 100 dead

28 May 2012 Last updated at 18:09 BST

In one of the latests attacks in Syria more than 100 people died in the town of Hola.

It follows a year of fighting between government troops and people who are unhappy with how things are being run.

There had been hopes that a peace deal between the two could be struck.

Now World leaders are desperately trying to come up with a new plan to prevent more killing.