India chipped away at America's diplomatic perks Wednesday, ordering the envoys to obey local traffic laws and warning that a popular U.S. Embassy club violates diplomatic law because it is open to outsiders. The moves were the latest in a campaign to exert pressure on the U.S. following the arrest and strip search last month of Devyani Khobragade, an Indian diplomat based in New York City.

India took retaliatory measures against the United States on Wednesday in a row over an Indian diplomat who complained of being stripped and forced to undergo “cavity searches” while in U.S. detention. The measures included a revision of work conditions of Indians employed at U.S. consulates and a freeze on the import of duty-free alcohol.

For three months, six women and one man have been sitting outside the US embassy in London and starving themselves in the cold. The group—who are all middle-aged British residents—are subsisting on nothing but water and sugar lumps to protest against the killing of 52 residents and the alleged kidnapping of seven others at Camp Ashraf, Iraq on September 1.