LONDON, Ontario (AP) — Prosecutors laid terrorism charges Monday against a man accused of driving down and killing four members of a Muslim family in London, Ontario.

The prosecution said Nathaniel Veltman’s four counts of first-degree murder constitute an act of terrorism and prosecutors have upgraded those charges under Canada's criminal code. Police allege the incident was a planned and premeditated attack targeting Muslims.

Veltman also faces one count of attempted murder due to terrorism activity.

The upgraded charges were laid as Veltman made a brief court appearance via video Monday morning. He has yet to enter a plea.

Salman Afzaal, 46, his 44-year-old wife Madiha Salman, their 15-year-old daughter Yumna and her 74-year-old grandmother, Talat Afzaal were killed while out for an evening walk on June 6.

The couple’s nine-year-old son, Fayez, was seriously injured but is expected to recover.