WEST COVINA – West Covina police say two people in ninja costumes robbed a medical marijuana delivery man but it’s not clear how much money or marijuana was taken.

Police Lt. Alan Henley told the San Gabriel Valley Tribune the victim had just made a delivery to a patient on South Sunset Avenue and was headed to his car when the pair confronted him and chased him with batons.

Henley said the attack took place just before 10 p.m. Friday.

Henley said the victim, in his 40s, was scared and dropped a bag containing marijuana and money and the attackers took it.

The lieutenant says he knows of no other ninja-style thefts recently.