Four people have been arrested after allegedly trespassing on a working mine site at Lake Macquarie.
Police were called to the coal plant on Powerhouse Road at Teralba about 11.30pm on Monday after reports that several people had entered the premises.
Officers established a perimeter and tracked down three men and one woman - with the help of the police dog unit - and arrested them without incident, a NSW Police statement said on Tuesday.
Police will allege the four people had removed or were in the process of taking a large quantity of copper cabling.
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A 41-year-old Birmingham Gardens man was charged with possess or use a prohibited weapon without permit and other outstanding warrants.
A 54-year-old Teralba man, a 40-year-old Cardiff man and a 27-year-old Belmont North woman were each charged with two counts each of enter enclosed land without lawful excuse, larceny and destroy/damage mine equipment.
All four were refused bail to face Toronto Local Court on Tuesday.
