Commuters arriving at Liverpool Street mainline station in east London on Tuesday read a sign warning them to expect disruption to their onward journeys from major industrial action by tube train drivers. Photo by Tolga Akmen/EPA

June 2 (UPI) -- Millions of commuters, tourists and Londoners were facing travel disruption across the center of the British capital on Tuesday after 1,700 subway drivers went on strike in a dispute over working hours, forcing the transit authority to shutter four of the city's 11 lines.

Travelers were warned there were no trains on the Circle, Piccadilly and Waterloo & City lines and large sections of the Central and Metropolitan lines through midnight after Rail, Maritime and Transport Workers union members walked out for 24 hours starting at 12.01 a.m. local time.

The BBC reported "severe disruption" on sections still running of the partially-closed Bakerloo line and on the District and Hammersmith & City lines with only the Jubilee line operating without any delays or other issues.

Services on three lines -- Northern, Victoria and Jubilee -- were operating at close to normal levels despite Transport for London warning riders to expect disruption across the entire network, which transports 5 million passengers on a normal day.