Here’s what we know on Thursday, May 25:

—While ten suspects have been arrested, two have since been released. Ian Hopkins, the Manchester police chief, says the arrests made so far “are significant,” adding authorities have recovered “items that we believe are very important to the investigation.”

—Police say they won’t share any information about the inquiry with their U.S. counterparts following leaks to the media that Hopkins said caused the families of the victims “much distress.” Prime Minister Theresa May said she’ll raise the issue today with President Trump.

—German media are reporting Salman Abedi, the bomber, traveled to Germany at least twice.

—All 22 victims of the attack have been named.

—The U.K.’s terror-alert level is at critical—the highest possible level—for the first time in more than a decade.

—All updates are in Eastern Standard Time (GMT -4).