Stanford University President Marc Tessier-Lavigne has announced his resignation following a research scandal.

The announcement comes after student journalists exposed multiple research papers authored by Tessier-Lavigne that had manipulated data.

An independent review cleared him of research misconduct, but simultaneously found flaws and mistakes in some of his papers. The review assessed 12 papers he worked on. Though he maintains he never submitted a paper that was knowingly inaccurate, he did acknowledge issues that he didn’t resolve.

The board of trustees named Richard Saller as the interim president, starting September 1.