Norton Rose is set to lose a City corporate partner with Anthony Riley joining the London office of Orrick Herrington & Sutcliffe.

Riley, who is based in Norton Rose's City base, specialises in domestic and cross border M&A and joint ventures, with a particular emphasis on the energy and infrastructure sectors. He is dual-qualified in England and Wales as well as with the New York Bar.

The departure marks the first partner move out of Norton Rose's London office for some time. However, the expansive firm has recently lost partners in its international offices.

Most recently, Jones Day hired a four-lawyer team from the firm's Paris office in September, including the head of its French corporate practice, Herve Castelnau. Norton Rose also lost Middle East practice managing partner Campbell Steedman to White & Case in a four-partner walkout to US firms in the region in August this year.

Norton Rose this month hired Barlow Lyde & Gilbert's head of marine, energy and trade Patrick Foss. He joined the firm's London office on 1 November alongside fellow marine insurance partner Chris Zavos.

The news comes after a string of departures from Orrick's London office, with the US firm recently having lost its entire London restructuring team to US rival Dewey & LeBoeuf. The two-partner team was led by Orrick's European co-head of restructuring and insolvency, Mark Fennessy, who joined Dewey's seven-partner London business solutions and governance practice alongside fellow restructuring partner Hazel Miller.

Martin Scott, head of corporate at Norton Rose LLP, comments: "We can confirm that Anthony is retiring from the practice, and we wish him all the very best for the future. Our M&A practice in the UK remains strong, with more than 120 lawyers including over 40 partners"