The US International Trade Commission is investigating “certain mobile and portable electronic devices incorporating haptics”, naming Apple and AT&T as respondents.

The move follows a complaint from Immersion Corporation, a haptics technology specialist. The company is requesting “a limited exclusion order and cease and desist orders”.

According to an earlier Immersion statement, its complaint covers the iPhone 6 and Apple Watch product families. It has also filed a similar complaint with a US District Court.

The ITC said that in initiating its investigation, it has “not yet made any decision on the merits of the case”.