private function handle_delete_networks() {
		$deleted_networks = array_map( 'absint', filter_input( INPUT_POST, 'deleted_networks', FILTER_FORCE_ARRAY ) );
		$override         = (bool) filter_input( INPUT_POST, 'override' );

		foreach ( $deleted_networks as $deleted_network ) {
			$result = delete_network( $deleted_network, $override );
			if ( is_wp_error( $result ) ) {
				wp_die( esc_html( $result->get_error_message() ) );
			}
		}

		$this->handle_redirect( array(
			'networks_deleted' => '1',
		) );
	}