Nokia is planning to hold a press event next week, alongside Microsoft’s Build developers conference. The Finnish smartphone maker started sending invites to the media briefing earlier today, and the event will start at 4PM PT / 7PM ET on April 2nd, the same day Microsoft holds its first keynote for its Build developer conference. While Microsoft is expected to unveil Windows Phone 8.1 next Wednesday, Nokia will likely unveil a pair of new Windows Phone 8.1 handsets.

Sources familiar with Nokia’s plans tell The Verge that the company is working on two Windows Phone 8.1 devices currently. The Lumia 930, codenamed Martini, is designed as an international variant of Nokia’s Lumia Icon. We understand the Lumia 930 will look very similar to the Icon, and will include the same hardware specifications with a 20-megapixel camera. Nokia is also testing its Lumia 630, codenamed Moneypenny. The Lumia 630 is the first Windows Phone handset to include on-screen buttons, and will ship with a 4.5-inch display and dual-SIM support. We’re told that Nokia will launch at least one of these devices next week, with a full retail release planned later in April. The Verge will be live from Build and Nokia’s press event, so stay tuned.