Safari on my iPhone keeps crashing on start up?

It randomly started yesterday, everytime I try to open Safari on my phone it crashes straight away, I've tried deleting cookies and data but it's made no difference.
Help.

Added (1). Restarted and it working, don't know why I didn't think of that sooner… Thanks!

This could happen if you're on a semi-thetered jailbreak… If not try to restore or update to the newest iOS 6.0.1:)

If you're interested you can earn free iTunes gift cards just by downloading & tryin free apps: Check this link from your device after safari get fixed.
http://m.freemyapps.com/share/url/87ab5bf5

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