diff --git a/callback.go b/callback.go
index 07ae9ba8..d1db4362 100644
--- a/callback.go
+++ b/callback.go
@@ -161,17 +161,18 @@ func GetDisconnectionReason(reason livekit.DisconnectReason) DisconnectionReason
 }
 
 type RoomCallback struct {
-	OnDisconnected            func()
-	OnDisconnectedWithReason  func(reason DisconnectionReason)
-	OnParticipantConnected    func(*RemoteParticipant)
-	OnParticipantDisconnected func(*RemoteParticipant)
-	OnActiveSpeakersChanged   func([]Participant)
-	OnRoomMetadataChanged     func(metadata string)
-	OnRecordingStatusChanged  func(isRecording bool)
-	OnRoomMoved               func(roomName string, token string)
-	OnReconnecting            func()
-	OnReconnected             func()
-	OnLocalTrackSubscribed    func(publication *LocalTrackPublication, lp *LocalParticipant)
+	OnDisconnected                      func()
+	OnDisconnectedWithReason            func(reason DisconnectionReason)
+	OnParticipantConnected              func(*RemoteParticipant)
+	OnParticipantDisconnected           func(*RemoteParticipant)
+	OnParticipantDisconnectedWithReason func(*RemoteParticipant, livekit.DisconnectReason)
+	OnActiveSpeakersChanged             func([]Participant)
+	OnRoomMetadataChanged               func(metadata string)
+	OnRecordingStatusChanged            func(isRecording bool)
+	OnRoomMoved                         func(roomName string, token string)
+	OnReconnecting                      func()
+	OnReconnected                       func()
+	OnLocalTrackSubscribed              func(publication *LocalTrackPublication, lp *LocalParticipant)
 
 	// participant events are sent to the room as well
 	ParticipantCallback
@@ -183,17 +184,18 @@ func NewRoomCallback() *RoomCallback {
 	return &RoomCallback{
 		ParticipantCallback: *pc,
 
-		OnDisconnected:            func() {},
-		OnDisconnectedWithReason:  func(reason DisconnectionReason) {},
-		OnParticipantConnected:    func(participant *RemoteParticipant) {},
-		OnParticipantDisconnected: func(participant *RemoteParticipant) {},
-		OnActiveSpeakersChanged:   func(participants []Participant) {},
-		OnRoomMetadataChanged:     func(metadata string) {},
-		OnRecordingStatusChanged:  func(isRecording bool) {},
-		OnRoomMoved:               func(roomName string, token string) {},
-		OnReconnecting:            func() {},
-		OnReconnected:             func() {},
-		OnLocalTrackSubscribed:    func(publication *LocalTrackPublication, lp *LocalParticipant) {},
+		OnDisconnected:                      func() {},
+		OnDisconnectedWithReason:            func(reason DisconnectionReason) {},
+		OnParticipantConnected:              func(participant *RemoteParticipant) {},
+		OnParticipantDisconnected:           func(participant *RemoteParticipant) {},
+		OnParticipantDisconnectedWithReason: func(participant *RemoteParticipant, reason livekit.DisconnectReason) {},
+		OnActiveSpeakersChanged:             func(participants []Participant) {},
+		OnRoomMetadataChanged:               func(metadata string) {},
+		OnRecordingStatusChanged:            func(isRecording bool) {},
+		OnRoomMoved:                         func(roomName string, token string) {},
+		OnReconnecting:                      func() {},
+		OnReconnected:                       func() {},
+		OnLocalTrackSubscribed:              func(publication *LocalTrackPublication, lp *LocalParticipant) {},
 	}
 }
 
@@ -215,6 +217,9 @@ func (cb *RoomCallback) Merge(other *RoomCallback) {
 	if other.OnParticipantDisconnected != nil {
 		cb.OnParticipantDisconnected = other.OnParticipantDisconnected
 	}
+	if other.OnParticipantDisconnectedWithReason != nil {
+		cb.OnParticipantDisconnectedWithReason = other.OnParticipantDisconnectedWithReason
+	}
 	if other.OnActiveSpeakersChanged != nil {
 		cb.OnActiveSpeakersChanged = other.OnActiveSpeakersChanged
 	}
diff --git a/room.go b/room.go
index 0374339a..df4a9672 100644
--- a/room.go
+++ b/room.go
@@ -809,7 +809,7 @@ func (r *Room) OnRestarting() {
 	r.callback.OnReconnecting()
 
 	for _, rp := range r.GetRemoteParticipants() {
-		r.OnParticipantDisconnect(rp)
+		r.OnParticipantDisconnect(rp, livekit.DisconnectReason_UNKNOWN_REASON)
 	}
 }
 
@@ -878,7 +878,7 @@ func (r *Room) OnParticipantUpdate(participants []*livekit.ParticipantInfo) {
 		isNew := rp == nil
 
 		if pi.State == livekit.ParticipantInfo_DISCONNECTED {
-			r.OnParticipantDisconnect(rp)
+			r.OnParticipantDisconnect(rp, pi.GetDisconnectReason())
 		} else if isNew {
 			rp = r.addRemoteParticipant(pi, true)
 			r.clearParticipantDefers(livekit.ParticipantID(pi.Sid), pi)
@@ -907,7 +907,7 @@ func (r *Room) OnParticipantUpdate(participants []*livekit.ParticipantInfo) {
 	}
 }
 
-func (r *Room) OnParticipantDisconnect(rp *RemoteParticipant) {
+func (r *Room) OnParticipantDisconnect(rp *RemoteParticipant, reason livekit.DisconnectReason) {
 	if rp == nil {
 		return
 	}
@@ -921,6 +921,7 @@ func (r *Room) OnParticipantDisconnect(rp *RemoteParticipant) {
 	rp.unpublishAllTracks()
 	r.LocalParticipant.handleParticipantDisconnected(rp.Identity())
 	go r.callback.OnParticipantDisconnected(rp)
+	go r.callback.OnParticipantDisconnectedWithReason(rp, reason)
 }
 
 func (r *Room) OnSpeakersChanged(speakerUpdates []*livekit.SpeakerInfo) {
@@ -1002,7 +1003,7 @@ func (r *Room) OnRoomMoved(moved *livekit.RoomMovedResponse) {
 	r.OnRoomUpdate(moved.Room)
 
 	for _, rp := range r.GetRemoteParticipants() {
-		r.OnParticipantDisconnect(rp)
+		r.OnParticipantDisconnect(rp, livekit.DisconnectReason_ROOM_CLOSED)
 	}
 
 	go r.callback.OnRoomMoved(moved.Room.Name, moved.Token)