Four London Squire Patton Boggs partners have left the firm to join US rival Crowell & Moring, reuniting with former City head Robert Weekes.

Squire's UK litigation head Laurence Winston, London insolvency head Cathryn Williams, insolvency partner Paul Muscutt and infrastructure partner Robin Baillie have all left the firm to join Crowell's London outpost, a person with knowledge of the situation confirmed.