San Diego Police Dept. via NBCSanDiego.com Approximately 30 pounds of pot were secured to the undercarriage of a woman's vehicle using magnets. Detectives say she unknowingly transported the drugs across the border.

San Diego narcotics detectives are investigating an incident in which a woman may have unknowingly transported a large quantity of marijuana across the border.

According to investigators, a 33-year-old woman who lives in Mexico and works in downtown San Diego crossed the border in her personal vehicle around 3 a.m. Friday.

Read original report at NBCSanDiego.com

She arrived at work early and was seated inside her car when, at about 4 a.m., two unknown males approached her parked vehicle and began removing items from the undercarriage.

Investigators say the woman startled the men, and they ran to a black sedan nearby and took off.

The woman contacted police officers, who discovered six packages had been secured to the undercarriage of the woman’s vehicle with strong magnets.

Inside the packages officers found more around 30 pounds of marijuana.

Investigators believe the woman unknowingly transported the drugs across the border. At this point, it is unclear who actually strapped the marijuana to her car.

No arrests have been made, and police say the investigation is ongoing.

Narcotics detectives want to remind drivers to check their vehicle before crossing the border to ensure it’s free of contraband, illegal items or unknown items.