Police are trying to determine if two recent East Boston park attacks, one of which left a man dead, are related.

The separate attacks on visitors to the Belle Isle Marsh Reservation within the past two weeks were being examined by authorities on Wednesday to determine if the crimes were connected, WHDH reported.

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Over Memorial Day weekend, an 83-year-old man was attacked and left with a serious head injury, WHDH added. He died three days later.

On June 1, a 67-year-old Lynn man who was walking in the park was assaulted and left with non-life-threatening injuries, WCVB reported. Because of evidence gathered, authorities were working to determine if that assault was related to the Memorial Day attack.

The June 1 victim was able to give police a description of his attacker, according to WHDH, which added that both attacks happened in the afternoon. There has been an increased police presence at the park since the assaults.  

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The June 1 attacker was described as a white man in his 20s or 30s, about 5 foot 9 and wearing a hat, T-shirt and shorts, WCVB added.