Perth brothers Jake and Callum Robinson missing during surfing trip in Baja California in Mexico

Brothers Jake and Callum Robinson haven’t been in contact with loved ones since Saturday when they failed to arrive at accomodation. (Supplied)

The WA premier has described as “distressing” reports two Perth brothers have disappeared while on a camping and surfing trip in northern Mexico.

Jake and Callum Robinson, both aged in their 30s, failed to arrive at holiday accommodation in the city of Rosarito four days ago.

It’s understood they were surfing and camping at the popular surfing spot Punta San Jose near the city of Ensanada.

Their mother Debra Robinson has appealed for information on social media.

“They have not contacted us since April 27 … they are travelling with another friend; an American citizen,” the social media post reads.

“Callum is a Type 1 diabetic so there is also a medical concern.

“Please contact me if you have seen them or know their whereabouts.”

Premier Roger Cook said he was aware of the situation, describing it as “really quite distressing”.

“This must be very worrying for the families involved,” he said.

“When we do send our young men and women overseas to enjoy that adventure holiday, they invite an element of risk.

“I understand one of the individuals has a medical condition that would need ongoing care.

“I share (the) concerns of all Western Australians in terms of their welfare.”

DFAT contacted

According to an online lacrosse profile, Callum Robinson attended high school at Sacred Heart College in Perth before travelling to the United States to play college lacrosse.

Both brothers have regularly posted images of their travels to social media.

In 2015, Australian surfers Dean Lucas and Adam Coleman were murdered while travelling through Mexico in a camper van.

The Department of Foreign Affairs and Trade (DFAT) has been contacted for comment.