OZZY OSBOURNE Stepping Up Security

Ozzy Osbourne is stepping up security at his mansion after masked burglars escaped with over £2 million (approximately $3.7 million) of jewelry, according to FemaleFirst.co.uk.

The rocker is planning to install a string of new measures including 24-hour security guards, laser "tripwires", guard dogs and watchtowers dotted around the property's 10 acres to spot any trespassers.

A source said: "He's shocked and angry. He can't understand how what he thought was a good security system failed. "

The burglary took place at Ozzy and Sharon's British home at around 4am on Monday morning (Nov. 22).