SAN JUAN, Puerto Rico (AP) — Police in Jamaica have charged a man they suspect is a serial killer involved in the deaths of at least four people with murder.

The 25-year-old man from Montego Bay is accused of fatally stabbing at least two homeless men, an older woman and a young man in July and August, police said in a statement Sunday.

All the victims were found stabbed in the parish of St. James, where the popular tourist destination of Montego Bay is located.

The investigation is ongoing.