Amid the release of Samsung Galaxy Note 7 replacement units, another explosion caused by the smartphone's defective battery has been reported. The incident reportedly happened in Minnesota on Oct. 7.

Abby Zuis, 13, was reportedly holding the phone when she suddenly felt a "weird, burning sensation." She immediately dropped the replacement phone and saw that she had sustained burn marks on her thumb from the incident. The heat reportedly caused the phone's cover to melt.

Zuis had exchanged the Samsung Note 7 unit that she purchased in August on Sept. 21 for the unit which burned in her hand.

A Samsung spokesman commented on the issue stating that "we take every report seriously and we are engaged with the Zuis family to ensure we are doing everything we can for them and their daughter." The company also emphasized that the safety of its customers is its top priority.

A few days before Zuis' case, a Galaxy Note 7 smartphone had emitted smoke during a Southwest Airlines flight headed from Kentucky to Baltimore. The unit at the center of the incident is also a replacement model. Michael Klering of Kentucky also reported another case involving a substitute unit that caught fire.

The battery defect has caused Samsung to recall around 2.5 million units of the Galaxy Note 7 worldwide. The company's status in the smartphone market has been threatened by this problem.