Ottawa police arrested a man in his 50s who allegedly threatened paramedics and a nurse with a knife.

Paramedics say they responded to a call at the Garden Terrace nursing home at 100 Aird Pl. for a 93-year-old woman who had injured her knee.

When they arrived, a man was in the front lobby holding a knife, paramedics said. They then placed a stretcher between them and the man before calling police at about 10 p.m.

Officers arrived, the situation calmed and the man was arrested.

Nobody was hurt in the incident.