diff --git a/drivers/ieee802154/ieee802154_nrf5.c b/drivers/ieee802154/ieee802154_nrf5.c
index 6df2367cebf..572c41e578b 100644
--- a/drivers/ieee802154/ieee802154_nrf5.c
+++ b/drivers/ieee802154/ieee802154_nrf5.c
@@ -256,6 +256,49 @@ static int nrf5_set_txpower(struct device *dev, s16_t dbm)
 	return 0;
 }
 
+static int handle_ack(struct nrf5_802154_data *nrf5_radio)
+{
+	u8_t ack_len = nrf5_radio->ack_frame.psdu[0] - NRF5_FCS_LENGTH;
+	struct net_pkt *ack_pkt;
+	int err = 0;
+
+	ack_pkt = net_pkt_alloc_with_buffer(nrf5_radio->iface, ack_len,
+					    AF_UNSPEC, 0, K_NO_WAIT);
+	if (!ack_pkt) {
+		LOG_ERR("No free packet available.");
+		err = -ENOMEM;
+		goto free_nrf_ack;
+	}
+
+	/* Upper layers expect the frame to start at the MAC header, skip the
+	 * PHY header (1 byte).
+	 */
+	if (net_pkt_write(ack_pkt, nrf5_radio->ack_frame.psdu + 1,
+			  ack_len) < 0) {
+		LOG_ERR("Failed to write to a packet.");
+		err = -ENOMEM;
+		goto free_net_ack;
+	}
+
+	net_pkt_set_ieee802154_lqi(ack_pkt, nrf5_radio->ack_frame.lqi);
+	net_pkt_set_ieee802154_rssi(ack_pkt, nrf5_radio->ack_frame.rssi);
+
+	net_pkt_cursor_init(ack_pkt);
+
+	if (ieee802154_radio_handle_ack(nrf5_radio->iface, ack_pkt) != NET_OK) {
+		LOG_INF("ACK packet not handled - releasing.");
+	}
+
+free_net_ack:
+	net_pkt_unref(ack_pkt);
+
+free_nrf_ack:
+	nrf_802154_buffer_free_raw(nrf5_radio->ack_frame.psdu);
+	nrf5_radio->ack_frame.psdu = NULL;
+
+	return err;
+}
+
 static int nrf5_tx(struct device *dev,
 		   struct net_pkt *pkt,
 		   struct net_buf *frag)
@@ -294,14 +337,13 @@ static int nrf5_tx(struct device *dev,
 	LOG_DBG("Result: %d", nrf5_data.tx_result);
 
 	if (nrf5_radio->tx_result == NRF_802154_TX_ERROR_NONE) {
-		/* ACK frame not used currently. */
-		if (nrf5_radio->ack != NULL) {
-			nrf_802154_buffer_free_raw(nrf5_radio->ack);
+		if (nrf5_radio->ack_frame.psdu == NULL) {
+			/* No ACK was requested. */
+			return 0;
 		}
 
-		nrf5_radio->ack = NULL;
-
-		return 0;
+		/* Handle ACK packet. */
+		return handle_ack(nrf5_radio);
 	}
 
 	return -EIO;
@@ -466,7 +508,9 @@ void nrf_802154_transmitted_raw(const uint8_t *frame, uint8_t *ack,
 	ARG_UNUSED(lqi);
 
 	nrf5_data.tx_result = NRF_802154_TX_ERROR_NONE;
-	nrf5_data.ack = ack;
+	nrf5_data.ack_frame.psdu = ack;
+	nrf5_data.ack_frame.rssi = power;
+	nrf5_data.ack_frame.lqi = lqi;
 
 	k_sem_give(&nrf5_data.tx_wait);
 }
diff --git a/drivers/ieee802154/ieee802154_nrf5.h b/drivers/ieee802154/ieee802154_nrf5.h
index a61f1986637..a469d6b320b 100644
--- a/drivers/ieee802154/ieee802154_nrf5.h
+++ b/drivers/ieee802154/ieee802154_nrf5.h
@@ -61,10 +61,10 @@ struct nrf5_802154_data {
 	/* TX result, updated in radio transmit callbacks. */
 	u8_t tx_result;
 
-	/* A pointer to the received ACK frame. May be NULL if no ACK was
-	 * requested/received.
+	/* A buffer for the received ACK frame. psdu pointer be NULL if no
+	 * ACK was requested/received.
 	 */
-	u8_t *ack;
+	struct nrf5_802154_rx_frame ack_frame;
 };
 
 #endif /* ZEPHYR_DRIVERS_IEEE802154_IEEE802154_NRF5_H_ */