VINHEDO, Brazil, Aug 10 (Reuters) - Work was underway on

Saturday by Brazilian authorities in recovering the remains of

passengers on a plane that crashed on Friday in the town of

Vinhedo, near Sao Paulo, killing all 62 people on board.

At least 31 bodies had been recovered by 1 p.m. local time

(1600 GMT) on Saturday, the Sao Paulo state government said. The

bodies of the pilot and co-pilot were identified, said Dario

Pacheco, mayor of Vinhedo.

All the bodies are being moved to Sao Paulo's police morgue.

A Venezuelan man and Portuguese woman are among the dead,

state civil defense official Roberto Farina said, adding that

the local consulates have already been contacted.

On Friday regional carrier Voepass said the plane was

carrying 57 passengers and four crew, but on Saturday the firm

confirmed another unaccounted-for passenger was on the flight,

putting the number of casualties at 62.

Authorities are using seat assignments, physical

characteristics, documents and belongings such as cell phones to

identify the victims, firefighter Maycon Cristo said at the

crash site.

"Once all this evidence has been collected, we will remove

the victims from the wreckage and place them in the vehicle to

be transported to Sao Paulo," he said.

Relatives of the victims have been brought to Sao Paulo to

provide DNA samples to aid in identification of the remains,

said state civil defense coordinator Henguel Pereira.

The plane's so-called "black box" containing voice

recordings and flight data is undergoing analysis, said Marcelo

Moreno, the head of Brazilian aviation accident investigation

center Cenipa, at a press conference in Vinhedo.

The plane, an ATR-72 turboprop, was bound for Sao Paulo

from Cascavel, in the state of Parana, and crashed around 1:30

p.m. (1630 GMT) in Vinhedo, some 80 km (50 miles) northwest of

Sao Paulo. Despite coming down in a residential area, no one on

the ground was hurt.

The aircraft was flying normally until 1:21 p.m., when it

stopped responding to calls, and radar contact was lost at 1:22

p.m., Brazil's air force said in a statement.

Pilots did not report an emergency or adverse weather

conditions, the air force added.

Franco-Italian ATR, jointly owned by Airbus and Leonardo, is

the dominant producer of regional turboprop planes seating 40 to

70 people. ATR told Reuters on Friday that its specialists were

"fully engaged" with the investigation into the crash.