The mother of a New Hampshire child last seen six months ago was captured in the Bronx Sunday along with her boyfriend as authorities continue to search for 5-year-old Elijah Lewis, who was formally reported missing only last week.
Danielle Denise Dauphinais and Joseph Stapf were arrested by New York Transit Police on Sunday.
In New Hampshire, Dauphinais, 35, and Stapf, 30, are facing charges of witness tampering and child endangerment now pending in Hillsborough County Superior Court, where they could be arraigned as soon as later this week.
“The witness tampering charges allege that they each asked other people to lie about Elijah and where he was living knowing that child protection service workers were searching for Elijah,” prosecutors said in a statement. “The endangerment charge alleges that they violated a duty of care, protection or support for Elijah.”
Authorities said Dauphinais was the child’s mother, and Stapf is her boyfriend.
They were arrested Sunday morning at 7:13 a.m. in the vicinity of Westchester Avenue and Bruckner Avenue with the assistance of NYPD officers and Secret Service agents, according to officials in New York.
According to prosecutors, the last time a person can independently confirm that the child was alive took place six months ago. However, it was only last week that the Department of Children Youth and Families reported him missing to Merrimack, N.H., police. Law enforcement has been searching for the child since that date, and the search remains active Monday, prosecutors said.
“Officials are continuing to search for Elijah and are requesting the public’s assistance in locating him,” prosecutors said.
According to prosecutors, DCYF was involved with the Lewis family before the child protection agency reported the child missing, but the details of that interaction are not currently the focus of law enforcement — finding the child is.
When reached out to Monday regarding further information on the case, a DCYF spokeswoman said that “state and federal law requires us to protect the confidentiality of children and families served by and individuals engaged with DCYF.”
WMUR-TV reported authorities searched Naticook Lake in the town of Merrimack, N.H., where Lewis was reported to be last living with his mother at a home on Sunset Drive.
Emily Sweeney of the Globe staff contributed to this report.