Photos of an unreleased HTC Android phone have been leaked on Twitter account @evleaks.
The device is rumoured to be called the HTC One and was formerly codenamed M7.
The leaked press image shows a large smartphone with a strange button layout. The phone pictured has a back button on the left and a home button on the right, flanked by a rather large HTC logo.
The image doesn't appear to show multitasking button, which has long been a traditional feature of HTC Android phones.
The phone appears to have a two-tone colour scheme, with a black bezel surrounding the screen and a white piece on both the top and bottom edges.
Both pieces could house a speaker — the company published an infographic last week suggesting it will "kick off a new sound and camera experience in 2013."
The HTC One is expected to feature a 4.7in full HD display and is likely to come with the latest version of the company's Sense user interface, version 5.0.
HTC will hold a press event in New York on Tuesday 19 February where it is expected to unveil the HTC One. The event is scheduled a few days before the Mobile World Congress (MWC) 2013 event in Barcelona, Spain.
MWC is the world's largest mobile trade show and traditionally sees most major mobile manufacturers release new smartphones.