U.S. Sen. Charles Schumer is demanding the Metropolitan Transportation Authority restore around-the-clock subway service in New York City.

The city’s subway system has been long celebrated for its all-night service. But it currently shuts down each day from 2 a.m. to 4 a.m. so trains and stations can be disinfected.

The Senate’s top Democrat says the system should resume 24-hour service immediately.

He pointed to a jump in subway ridership, a drop in the number of coronavirus cases reported in the city and the number of people being vaccinated.

New York City Mayor Bill de Blasio has said he expects the city will “fully reopen” by July 1.