A Valley Stream man was being held in Nassau County jail in lieu of a $115,000 bond or cash bail after being arrested in connection with two bank robberies Tuesday within about 20 minutes of each other -- one at a Citbank in Rockville Centre and the other at the Roslyn Savings Bank in Oceanside, Nassau County police said.

There were no injuries.

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Elvi Rodriguez, 32, of 460 Rockaway Ave., was arrested Saturday and charged with robbery, criminal possession of stolen property, criminal possession of a controlled substance and resisting arrest. He was arraigned Sunday in First District Court in Hempstead.

According to Nassau County police detectives, Rodriguez, wearing sunglasses, a white T-shirt, black jeans and black and white sneakers and carrying a black drawstring bag, entered the Citibank, 297 Merrick Rd., at 1:21 p.m. Tuesday. He presented a teller with a note demanding money, and the teller gave him an undisclosed amount of cash.

Police said the suspect fled on foot. There were nine employees and one customer in the bank at the time.

At 1:40 p.m., police said Rodriguez entered the Roslyn Savings Bank, 3140 Long Beach Rd., and gave the teller a demand note. The teller gave the suspect an undisclosed amount of cash and again the suspect fled on foot in an unknown direction. There were six employees and one customer in the bank at the time of that incident.

Police said a subsequent investigation led detectives to Rodriguez. He was found at 4:13 p.m. Saturday in a stolen 2009 Suzuki SX4 outside a Massapequa home on Arlyn Drive East. During the arrest Rodriguez resisted but was eventually placed into custody, police said. In his possession were three white pills identified as Zolpidem, a sedative-hypnotic used to treat insomnia, police said.