Benghazi, Libya (CNN) -- Heartened by allied attacks that turned a Libyan military convoy into a hulking ruin, anti-Gadhafi forces remained wary in their stronghold as night fell Sunday.

Doctors told CNN they were running low on emergency and other medical supplies. When the fighting had begun, they sent supplies to the front lines in areas like Ras Lanouf and Brega. When those cities were recaptured by Moammar Gadhafi, those supplies were lost.

A senior physician said 95 people died in Saturday's assault on the city by Gadhafi troops.

The opposition forces have increased the number of vehicle checkpoints and their searches are more diligent.

Despite the damage to Gadhafi's troops, there is growing concern that pro-government elements within the population will carry out intimidation campaigns and targeted assassinations of opposition leaders.

Most shops in this city on the eastern coast remain closed.

Multiple allied airstrikes Sunday smashed a convoy of about 70 military vehicles nearly 20 miles (30 kilometers) outside of town.

The gruesome collection of charred bodies, twisted tanks and smashed trucks was on a stretch of highway bordered by flower-filled fields.

Rebels said the convoy was made up of Gadhafi loyalists coming to attack Benghazi.

Anti-Gadhafi residents have said loyalist forces would have massacred them if they had been able to enter the city.

Residents of the city, which was reported to be calm late Sunday, believe they can now take the offensive against loyalist troops.

Adm. Mike Mullen, chairman of the U.S. Joint Chiefs of Staff, told CNN Sunday there would be continuous allied air cover of Benghazi.