diff --git a/src/controllers/CommentsController.ts b/src/controllers/CommentsController.ts
index 5f81064..5c795ff 100644
--- a/src/controllers/CommentsController.ts
+++ b/src/controllers/CommentsController.ts
@@ -4,6 +4,8 @@ import { LikesHelper, LikesType } from "../helpers/LikesHelper";
 import { check_string_before_insert, removeHTMLNodes } from "../utils/StringUtils";
 import { time } from "../utils/DateUtils";
 import { CommentsHelper } from "../helpers/CommentsHelper";
+import { NotificationsUtils } from "../utils/NotificationsUtils";
+import { NotifEventType } from "../entities/Notification";
 
 /**
  * Comments controller
@@ -43,7 +45,8 @@ export class CommentsController {
 
 		const commentID = await CommentsHelper.Create(newComment);
 
-		// TODO : Create notifications
+		// Create notifications
+		await NotificationsUtils.CreatePostNotification(h.getUserId(), postID, NotifEventType.COMMENT_CREATED);
 
 		// TODO : Delete any notifications targetting this user about the post
 
diff --git a/src/entities/Notification.ts b/src/entities/Notification.ts
index bdc6f05..012aebc 100644
--- a/src/entities/Notification.ts
+++ b/src/entities/Notification.ts
@@ -47,28 +47,28 @@ export enum NotifEventVisibility {
 }
 
 export interface NotifBuilder {
-	id: number,
+	id ?: number,
 	timeCreate: number,
-	seen: boolean,
+	seen ?: boolean,
 	fromUserID: number,
-	destUserID: number,
+	destUserID ?: number,
 	onElemID: number,
 	onElemType: NotifElemType,
 	type: NotifEventType,
-	eventVisibility: NotifEventVisibility,
+	eventVisibility ?: NotifEventVisibility,
 	fromContainerID ?: number,
 	fromContainerType ?: NotifElemType
 }
 
 export class Notif implements NotifBuilder {
-	id: number;	timeCreate: number;
-	seen: boolean;
+	id ?: number;	timeCreate: number;
+	seen ?: boolean;
 	fromUserID: number;
-	destUserID: number;
+	destUserID ?: number;
 	onElemID: number;
 	onElemType: NotifElemType;
 	type: NotifEventType;
-	eventVisibility: NotifEventVisibility;
+	eventVisibility ?: NotifEventVisibility;
 	fromContainerID ?: number;
 	fromContainerType ?: NotifElemType;
 
diff --git a/src/helpers/NotificationsHelper.ts b/src/helpers/NotificationsHelper.ts
index e474e36..aba146f 100644
--- a/src/helpers/NotificationsHelper.ts
+++ b/src/helpers/NotificationsHelper.ts
@@ -11,6 +11,15 @@ const NOTIFICATIONS_TABLE = "comunic_notifications";
 
 export class NotificationsHelper {
 	
+	/**
+	 * Push a new notification
+	 * 
+	 * @param n Notification to push
+	 */
+	public static async Push(n: Notif) {
+		// TODO : push notification
+	}
+
 	/**
 	 * Count the number of unread notifications of a user
 	 * 
diff --git a/src/utils/NotificationsUtils.ts b/src/utils/NotificationsUtils.ts
new file mode 100644
index 0000000..157668e
--- /dev/null
+++ b/src/utils/NotificationsUtils.ts
@@ -0,0 +1,30 @@
+/**
+ * Notifications utilities
+ * 
+ * @author Pierre Hubert
+ */
+
+import { NotifEventType, Notif, NotifElemType } from "../entities/Notification";
+import { NotificationsHelper } from "../helpers/NotificationsHelper";
+import { time } from "./DateUtils";
+
+export class NotificationsUtils {
+
+	/**
+	 * Create a notification about a post
+	 * 
+	 * @param fromUser Source user ID
+	 * @param postID Target post ID
+	 * @param action Action to notify
+	 */
+	public static async CreatePostNotification(fromUser: number, postID: number, action: NotifEventType) {
+		await NotificationsHelper.Push(new Notif({
+			timeCreate: time(),
+			fromUserID: fromUser,
+			onElemID: postID,
+			onElemType: NotifElemType.POST,
+			type: action
+		}));
+	}
+
+}
\ No newline at end of file