One person was wounded and arrested on Friday afternoon following a major police raid in the northern Brussels borough of Schaerbeek, Belgium, Mayor Bernard Clerfayt told Belgian public broadcaster RTBF.

The person was not only linked to terrorist attacks that devastated the capital three days ago, but another planned attack on France that was thwarted on Thursday. Witnesses heard two explosions, while others reported gunfire during the operation after authorities conducted searches in Schaerbeek for several hours beginning Thursday and into Friday morning, CNN reports.

Prosecutors detained three people in Brussels on Friday in relation to the French attack plan: Tawfik A., Salah A. and an unnamed third man taken in the Schaerbeek operation. Tawfik A. and the unidentified man were both wounded in the leg, a statement from prosecutors said.

Prosecutors have released three of the six people they detailed on Thursday. They’re still holding Faycal C., Abou A. and a third unnamed person, the statement said.

The bloody terror attacks killed at least 30 people, including two American siblings, on Tuesday morning. The Islamic State claimed responsibility for the deadly events. The three suspected suicide bombers behind the airport and subway attacks were identified on Wednesday as brothers Khalid and Ibrahim el-Bakraoui, and Najim Laachroui.