Following a robbery and attempted robbery on campus within two days this week, Stony Brook University's chief of police said Wednesday increased patrols have led to tips, and "we're asking for more."

"We're taking every lead seriously," said Chief Robert J. Lenahan, who said anyone with information can call university police at 631-632-3333.

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There have been no further incidents, he said, since three students reported they were victims of an attempted robbery early Tuesday on the north side of the main campus. Campus police already were investigating the robbery of a student walking on a bike path in the same area late Sunday.

Lenahan reported a slight increase in the use of campus safety services, such as calling for an escorted walk home or for a ride after dark.