Italy investigators probe why cable car brake 'didn't work'

A view of the cable car line that collapsed near Stresa, Italy, Sunday, May 23, 2021. A cable car taking visitors to a mountaintop view of some of northern Italy's most picturesque lakes plummeted to the ground Sunday and then tumbled down the slope, killing at least 13 people and sending two children to the hospital, authorities said. (AP Photo/Antonio Calanni)

A police officer salutes as a hearse passes by, on the road leading to the Stresa-Mottarone after a cable car of the line collapsed, near Stresa, Italy, Sunday, May 23, 2021. A cable car taking visitors to a mountaintop view of some of northern Italy's most picturesque lakes plummeted to the ground Sunday and then tumbled down the slope, killing at least 13 people and sending two children to the hospital, authorities said. (AP Photo/Antonio Calanni)

Rescuers work by the wreckage of a cable car after it collapsed near the summit of the Stresa-Mottarone line in the Piedmont region, northern Italy, Sunday, May 23, 2021. A cable car taking visitors to a mountaintop view of some of northern Italy's most picturesque lakes plummeted to the ground Sunday and then tumbled down the slope, killing at least 13 people and sending two children to the hospital, authorities said. (Italian Vigili del Fuoco Firefighters via AP)

Police officers patrol the road leading to the Stresa-Mottarone cable line for rescue operations to take place after a cable car of the line collapsed, near Stresa, Italy, Sunday, May 23, 2021. A cable car taking visitors to a mountaintop view of some of northern Italy's most picturesque lakes plummeted to the ground Sunday and then tumbled down the slope, killing at least 13 people and sending two children to the hospital, authorities said. (AP Photo/Antonio Calanni)

Rescuers work by the wreckage of a cable car after it collapsed near the summit of the Stresa-Mottarone line in the Piedmont region, northern Italy, Sunday, May 23, 2021. A cable car taking visitors to a mountaintop view of some of northern Italy's most picturesque lakes plummeted to the ground Sunday and then tumbled down the slope, killing at least 13 people and sending two children to the hospital, authorities said. (Italian Vigili del Fuoco Firefighters via AP)

Rescuers work by the wreckage of a cable car after it collapsed near the summit of the Stresa-Mottarone line in the Piedmont region, northern Italy, Sunday, May 23, 2021. Italy’s transport minister was heading Monday, May 24, 2021 to the scene of a cable car disaster that killed 14 people when the lead cable apparently snapped and the cabin careened back down the mountain until it pulled off the line and crashed to the ground. (Vigili del Fuoco Firefighters via AP)

Rescuers work by the wreckage of a cable car after it collapsed near the summit of the Stresa-Mottarone line in the Piedmont region, northern Italy, as seen from the aerial photograph, Sunday, May 23, 2021. Italy’s transport minister was heading Monday, May 24, 2021 to the scene of a cable car disaster that killed 14 people when the lead cable apparently snapped and the cabin careened back down the mountain until it pulled off the line and crashed to the ground. (Vigili del Fuoco Firefighters via AP)

Rescuers work by the wreckage of a cable car after it collapsed near the summit of the Stresa-Mottarone line in the Piedmont region, northern Italy, Sunday, May 23, 2021. A cable car taking visitors to a mountaintop view of some of northern Italy's most picturesque lakes plummeted to the ground Sunday and then tumbled down the slope, killing at least 13 people and sending two children to the hospital, authorities said. (Italian Vigili del Fuoco Firefighters via AP)

An helicopter flies over the cable car line that collapsed, near Stresa, Italy, Sunday, May 23, 2021. A cable car taking visitors to a mountaintop view of some of northern Italy's most picturesque lakes plummeted to the ground Sunday and then tumbled down the slope, killing at least 13 people and sending two children to the hospital, authorities said. (AP Photo/Antonio Calanni)

A police car drives past a sign reading in Italian "Road closed for transit" as the road leading to the Stresa-Mottarone cable line is closed off in order for rescue operations to take place after a cable car of the line collapsed, near Stresa, Italy, Sunday, May 23, 2021. A cable car taking visitors to a mountaintop view of some of northern Italy's most picturesque lakes plummeted to the ground Sunday and then tumbled down the slope, killing at least 13 people and sending two children to the hospital, authorities said. (AP Photo/Antonio Calanni)

Rescuers work by the wreckage of a cable car after it collapsed near the summit of the Stresa-Mottarone line in the Piedmont region, northern Italy, Sunday, May 23, 2021. A mountaintop cable car plunged to the ground in northern Italy on Sunday, killing at least five people and sending at least three more to the hospital, authorities said. (Soccorso Alpino e Speleologico Piemontese via AP)

Rescuers work by the wreckage of a cable car after it collapsed near the summit of the Stresa-Mottarone line in the Piedmont region, northern Italy, Sunday, May 23, 2021. A cable car taking visitors to a mountaintop view of some of northern Italy's most picturesque lakes plummeted to the ground Sunday and then tumbled down the slope, killing at least 13 people and sending two children to the hospital, authorities said. (Italian Vigili del Fuoco Firefighters via AP)