Former England bowler Graeme Swann has described Kevin Pietersen's reaction to Matt Prior's recent comments as "childish".
The wicketkeeper recently admitted in a question and answer session in Dubai that the dressing room will be a better place without Pietersen, who was dropped by the ECB after England's Ashes defeat.
The batsman responded on Twitter by saying: "Fewer Q&A's, more Sussex nets methinks, @MattPrior13! #josbuttler."
Swann told BBC Radio Five Live: "It's another disappointing episode. Matt's been a bit naive, but he's said some things he believes in.
"Kev's come back in a childish way. I'm sure he's still got his number and could've phoned him up, but gone are the days of phoning someone up and thrashing it out. Now it involves a million people on Twitter these days."
Swann retired from international cricket in December.
