MONTGOMERY, Ala. (AP) - Federal authorities examined the scene of a deadly liquor store shooting in Montgomery in a search for links to the Washington-area sniper attacks.

Mayor Bobby Bright said a caller to the sniper investigation tip line apparently claimed responsibility for both the sniper shootings and the Sept. 21 shooting outside a state liquor store. One woman was killed and another was wounded.

Bright said the tip-line caller told authorities to contact Montgomery officials if they didn't believe he was responsible for the sniper shootings, which began Oct. 2.

Police issued an arrest warrant Wednesday for John Allen Muhammad on a federal weapons charge and said they wanted to question him about the sniper shootings. Montgomery County, Md., Police Chief Charles Moose said Muhammad may be traveling with a juvenile, identified by a law enforcement source as 17-year-old Lee Malvo.

Authorities said two people wanted for questioning in the sniper attacks were arrested early Thursday, but did not release their names.

A law enforcement source told the AP that police found a piece of paper at the scene of the Alabama shooting that bore Malvo's fingerprints. Police then traced Malvo to a home in Tacoma, Wash., that was searched Wednesday by authorities looking into the sniper shootings. Malvo had been living in the home with Williams, a source told the AP.

Bright said investigators asked for files on the shooting and evidence, including a bullet found at the scene, and local authorities complied.

"We are fully cooperating, but we have no verification that anything here is related to the crimes in Montgomery County, Md.," Bright said.

The FBI in Mobile declined to comment on the mayor's remarks. Montgomery police Chief John Wilson said his department was cooperating with the sniper task force but told the Montgomery Advertiser that the two women were not shot with the same caliber bullets or type of weapon used in the Washington-area sniper attacks. Authorities said the sniper used .223 caliber bullets.

Montgomery police said they cannot contradict the chief's statement about the bullet calibers. They would not confirm the Montgomery paper's report that the woman who survived was told a .22-caliber bullet struck her.

Claudine Parker, 52, and Kellie Adams, 24, were locking up the liquor store for the night when they were shot. Parker was killed and Adams seriously injured.

Adams said her back was to the street when a single shot struck her just below the base of her skull. She said the gunman had not approached them.

"I never saw a face. I never saw him, period," Adams told the Montgomery newspaper, adding that police contacted her late Wednesday about a possible connection to the shootings.