Ottawa Mayor Jim Watson declared a state of emergency on Sunday due to the ongoing Freedom Convoy demonstration.
The 43-mile long Freedom Convoy started in Vancouver more than a week ago and reached Ottawa last Friday night.
Heavily armed Ottawa police officers removed all fuel and propane tanks from the Freedom Convoy trucks after Mayor Jim Watson declared a state of an emergency.
No arrests were made during the fuel seizure.
A CBC reporter posted video of Ottawa police seizing all fuel and propane tanks from the trucks parked at the logistics camp.
Ottawa police left with fuel but they did not dismantle the camp.
Police also cut off the supply route for protesters downtown.
Witnesses said before the police raid, they saw a drone fly overhead surveilling them.