Two pro-Palestine demonstrators and supporters of the Youth Demand group have been arrested after throwing red powder paint during the London Marathon to protest against Israel’s military offensive and blockade on Gaza, Al Jazeera reports.

An image shared by the group shows two people standing in the middle of the road wearing t-shirts that say: “Youth Demand: Stop Arming Israel.”

In a statement, Youth Demand said: “Gaza is running out of food. Arming genocide crosses the line. We won’t be bystanders.”

Marathon event staff intervened to remove the protesters and the race passed unobstructed, the Metropolitan Police said, adding that the paint appeared to be chalk-based and was not expected to present a hazard to the runners.