The CHP pulled a U-Haul truck over early this morning and upon further investigation on the truck the Officer noticed it had been leaking a substance from the rear of the truck. The officer called for a fire truck for as he thought it may have been leaking fuel but when the fire department arrived and investigated the substance they called for the help of the Haz-Mat team as it was possibly a drug related substance. Upon further investigation it turned out the leaking substance was from an illegal meth lab operation and the driver and his passenger of the truck were both arrested. A dagger was also found inside the truck. Brookhurst between the 91 Freeway and Roberta Ave will be closed for an unknown duration. No further details at this time.