New York Democratic Congressman Pat Ryan on Thursday urged industry trade group USTelecom, Verizon and AT&T to remove toxic lead cables that the Wall Street Journal reported the network providers left in several locations across the United States, according to a letter shared with CNN ahead of its release.

AT&T stock fell to its lowest level since 1993 on Tuesday, extending its losses following a report earlier this month that some of the country's largest network providers left thousands of lead-covered cables in several locations across the United States.