A woman who allegedly crossed the West Australian border without stopping and rammed a caravan into a police car is facing multiple charges.

Police say the 47-year-old was directed to stop at the South Australia-WA border on the Eyre Highway on Monday morning.

She failed to stop and supply quarantine and G2G travel pass documents.

Officers activated their emergency lights and sirens but the woman accelerated away, causing the caravan she was towing to sway unpredictably.

Police say the woman stopped when she was blocked from both sides but when officers approached, she put her car into reverse and rammed into an unmarked police vehicle.

She then allegedly turned towards an officer and accelerated, forcing the officer to take evasive action.

“The caravan eventually dislodged from the vehicle, travelling onto the incorrect side of the road and into the bush,” WA Police said in a statement.

“It is further alleged when the woman came to a stop and was approached by police officers she yelled at them before opening the driver’s door armed with a large glass jar which contained an unknown liquid.

“The woman smashed the glass and liquid near the feet of an officer and attempted to light the liquid on fire … (she then) drove around officers and fled.”

The woman is alleged to have attempted to reverse into the same police car again while in a truck rest bay before eventually turning around and heading back towards Madura Roadhouse, where she was taken into custody.

She has been charged with offences including endangering the life of a person, reckless driving to escape police pursuit, assault with intent to prevent arrest and failing to comply with a direction.

The woman, of no fixed address, will face Kalgoorlie Magistrates Court on Tuesday.