The editors in chief of journal A and journal B, both owned by society C, received a letter from the last ‘senior’ author, also the corresponding author on one of the papers (author D), concerning separate papers published in both journals (paper E published in journal A and paper F published in journal B), informing them that one of the co-authors on both papers is under investigation for scientific fraud. The results of the investigation are expected to take a further 6 months to complete.