ALAMEDA — Police are investigating a series of attempted sexual assaults they believe may be connected to one man, according to a news release issued Tuesday by the East Bay Regional Park District.

Police from the park district and the Alameda Police Department are looking at three attempted sexual assaults that all occurred in western Alameda in the last several weeks.

On Saturday, a woman reported an attempted sexual assault at the Robert W. Crown State Beach, and a similar incident was reported Tuesday. The two reports include a suspect description similar to an attempted sexual assault reported near the park Aug. 6 to the Alameda Police Department, according to a police statement.

The suspect was described as an African-American male adult about 20 to 25 years old with short curly hair, about 5 feet, 5 to 5 feet, 6 inches tall with a “thin build,” police said in the news release.

Police urged anyone with information about any of the incidents to call the tip line for the East Bay Regional Park District Police Department at 510-690-6549.