Apple (NASDAQ:AAPL) plans to lay off about 100 jobs in its services segment as the iPhone maker focuses on other essential businesses, Bloomberg reported, citing people familiar with the matter.

This move will have the biggest impact on the teams responsible for for the Apple Books app and Apple Bookstore. The cuts will affect some engineering positions and other service teams, including the one that manages Apple News, the report said he said.

The exact number of layoffs remains unclear. The company notified employees in various teams in Senior Vice President Eddy Cue’s services group on Tuesday.

The iPhone maker no longer sees Apple Books as one of its top offerings and is reorganizing teams amid a tilt toward artificial intelligence. Despite the job cuts, the Books app is expected to get modern features over time, according to people with knowledge.

Earlier in April, Apple (AAPL) laid off more than 600 workers as it canceled work on an electric vehicle project.