public function delete_item( $request ) {
		// Setting context.
		$request->set_param( 'context', 'edit' );

		// Get the thread before it's deleted.
		$thread   = $this->get_thread_object( $request['id'] );
		$previous = $this->prepare_item_for_response( $thread, $request );

		$user_id = bp_loggedin_user_id();
		if ( ! empty( $request['user_id'] ) ) {
			$user_id = $request['user_id'];
		}

		// Check the user is one of the recipients.
		$recipient_ids = wp_parse_id_list( wp_list_pluck( $thread->recipients, 'user_id' ) );

		// Delete a thread.
		if ( ! in_array( $user_id, $recipient_ids, true ) || ! messages_delete_thread( $thread->thread_id, $user_id ) ) {
			return new WP_Error(
				'bp_rest_messages_delete_thread_failed',
				__( 'There was an error trying to delete a thread.', 'buddypress' ),
				array(
					'status' => 500,
				)
			);
		}

		// Build the response.
		$response = new WP_REST_Response();
		$response->set_data(
			array(
				'deleted'  => true,
				'previous' => $previous->get_data(),
			)
		);

		/**
		 * Fires after a thread is deleted via the REST API.
		 *
		 * @since 5.0.0
		 *
		 * @param BP_Messages_Thread $thread   Thread object.
		 * @param WP_REST_Response   $response The response data.
		 * @param WP_REST_Request    $request  The request sent to the API.
		 */
		do_action( 'bp_rest_messages_delete_item', $thread, $response, $request );

		return $response;
	}