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Amateur video out of Syria appears to show the ongoing shelling of Homs.

The video, which could not be independently verified by Reuters, comes as rights groups say the rebel stronghold came under a barrage of shelling over the weekend.

Activists say Syrian forces fired mortar bombs at several Syrian cities over the weekend, as world powers gathered in Geneva to try to resolve the conflict.

The meeting concluded with world powers pushing for Syria to seek a transitional unity government, but Moscow and Beijing blocked language that would have suggested the new arrangement should exclude the current president, Bashar al-Assad.

More footage, purportedly from Aleppo, shows what appears to be wounded people, including a badly injured child.

Some of the wounded are now being treated in Turkey.

Turkey has become increasingly vocal against Syrian President Bashar al-Assad, calling for him to step down, and has given sanctuary to rebels and groups opposing the Syrian leader.

Deborah Lutterbeck, Reuters