SAN LEANDRO, Calif. -- Six children whose mother allegedly abducted them from their father's Alameda County home were located late Wednesday morning in what amounted to "a textbook Amber Alert" story, according to Alameda County sheriff's spokesman J.D. Nelson.

Enja Moore, 33, and her six children, ages 2 to 11, were found shortly before noon "jumping around" in Moore's estranged husband's minivan in the parking lot of the Greenhouse Marketplace at 699 Lewelling Blvd. in San Leandro, Nelson said.

A husband and wife who were headed to a Laundromat at the shopping center noticed that the green Mazda MPV minivan looked similar to the one described on the news after an Amber Alert was issued for the missing children, Nelson said.

The wife had even written down the van's license plate number when she heard about the Amber Alert.

When the couple realized it was the same vehicle, the husband blocked in the minivan with the couple's car and yelled to someone at a nearby check-cashing facility to call 911, Nelson said.

Police and paramedics responded and determined that all six kids -- three of whom are diabetic and need insulin repeatedly throughout the day -- did not need to be hospitalized, Nelson said.

The children and their mother were taken to the Alameda County sheriff's headquarters for questioning. Nelson said Moore has been taken into custody but did not know what, if any, charges she will face.

Moore, who is at least eight months pregnant, was visiting her children at her estranged husband's house on Delano Street in unincorporated Alameda County near San Leandro when, just after 11 p.m., the father returned from the rear of the house and realized Moore and his kids were gone, Nelson said.

Also missing was the father's green Mazda MPV minivan, Nelson said.

The father was grateful his children are safe, according to Nelson.

"He was just emotional and happy," Nelson said. "It's a textbook Amber Alert, as far as the kind of response" from the woman who wrote down the van's license plate number.

Nelson said police "hope that ... thousands of other people like her do the same very thing, to take the time to write (the license number) down and pay attention."