The National Hockey League is continuing its investigation of Sunday's confrontation in Buffalo between Coach Bryan Murray of the Washington Capitals and linesman Ron Asselstine.

"We're looking into it and we haven't finished our investigation," said Jim Gregory, NHL vice president of hockey operations, who attended the game Sunday and met with Murray and General Manager David Poile afterward. "We're still waiting for reports from the security people in Buffalo. If anything develops, we'll have an announcement, probably on Thursday. If not, we won't say anything further about it."

Murray was complaining to referee Bill McCreary between periods when Asselstine intervened and he and Murray exchanged harsh words and shoves, according to an eyewitness. Linesman Bob Hodges separated them.

The Capitals do not play again until Friday, when the Hartford Whalers visit Capital Centre. At yesterday's practice, Murray moved Kelly Miller to left wing on the line with Bengt Gustafsson and Dave Christian. Mike Ridley took Miller's spot as the checking-line center for Peter Sundstrom and Craig Laughlin.

Penguins 8, Sabres 3:

Craig Simpson and Charlie Simmer each scored two goals and Mario Lemieux had four assists to lead Pittsburgh, playing at home, to its first victory of the season.