There’s something fishy going on at ABC.

The news network is currently investigating T.J. Holmes and Amy Robach’s affair.

But it appears there might be a big ole RAT in the midst of their investigation.

According to reports, Robach, Holmes and ABC execs went into mediation on Thursday, January 26th to discuss their scandalous affair.

It’s not looking like things are going swimmingly for the co-anchors and head honchos at the network.

Per a Page Six report, the mediation could potentially go into the weekend or even well into next week.

Insiders revealed, “There could be a couple of days of back and forth.”

Several sources told the outlet that ABC believes they’ve got a potential snitch on their hands.

“No one is sharing any information [about the investigation] because they’re afraid of people [could be] leaking,” an additional source confirmed.