Chance the Rapper took to Twitter on Tuesday to weigh in on the five bombings that have killed two and left five others injured in and around Austin.

His tweet came after a package destined for Austin detonated at a FedEx facility in Schertz early Tuesday. If a connection is confirmed, the package would be the fifth in a series of related bombings.

The Chicago rapper tweeted, “Someone is serial murdering Black and Latino men and women in Texas right now,” and told followers to “Hold your leaders accountable,” saying that “elected officials should be talking about this.”

The first two bombs were received as packages and killed 39-year-old Anthony Stephan House and 17-year-old Draylen Mason. Both victims were black. Mason’s mother was also injured.

The third explosion, also a package bomb, injured 75-year-old Esperanza Herrera, who is Latina.

What You Need to Know: Austin Package Explosions

Initially, investigators reported considering the possibility that the bomber was targeting ethnic minorities and said they could not rule out a hate crime. However, the two men injured in the fourth explosion, which was triggered by a trip wire, were white.

Although the motive behind the bombs remains unclear, the trip wire setup was seen as an "unsettling move toward apparently random attacks."