PARIS (AP) — Drivers in France are planning to block roads across the country to protest rising fuel taxes, in a new challenge to embattled President Emmanuel Macron.

Protesters pledge to target tollbooths, roundabouts and the bypass that rings Paris on Saturday. The government is preparing to send police to remove protesters and threatening fines.

The taxes are part of Macron's strategy of weaning France off fossil fuels. Many drivers see them as emblematic of a presidency seen as disconnected from day-to-day economic difficulties.

The protesters have dubbed themselves the "yellow jackets" because they wear fluorescent vests that all French drivers must keep in their vehicles in case of car troubles.

Separately, ambulances briefly blocked Paris' Champs-Elysees on Friday to protest new rules on ambulance financing and put pressure on Macron's government.